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Nicolescu CM, Bumbac M, Radulescu C, Buruleanu CL, Olteanu RL, Stanescu SG, Gorghiu LM, Serban BC, Buiu O. Phytochemical Statistical Mapping of Red Grape Varieties Cultivated in Romanian Organic and Conventional Vineyards. Plants (Basel) 2023; 12:4179. [PMID: 38140506 PMCID: PMC10747049 DOI: 10.3390/plants12244179] [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] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023]
Abstract
Red grapes are rich in phytochemicals such as phenolics and flavonoids, which are strongly correlated with their antioxidant activity. Thus, grapes as-harvested and grape extracts, especially those obtained from their seeds and pulp, have been reported to have health benefits, and accordingly, grapes and their derivatives are considered potential functional food ingredients. The total phenolic content, total flavonoid content, and the antioxidant activity of skin, pulp, and seeds of four grape varieties grown both in conventional and organic vineyards were examined in this study. Phytochemical characteristics of one native Romanian variety, Feteasca Neagra, were compared with data measured for three red grape varieties more commonly cultivated worldwide (Merlot, Pinot Noir, and Muscat Hamburg). It was found that the seeds of the Pinot Noir variety grown in an organic system contained the highest total phenolics of 169.53 ± 7.32 mg gallic acid equivalents/g and the highest total flavonoid content of 388.25 ± 10.72 mg quercetin equivalents/g, values corresponding to high antioxidant activity (312.84 ± 12.81 mg ascorbic acid equivalents/g). The total flavonoid content in the hydroalcoholic extracts obtained from seeds of Pinot Noir (organic vineyard) was around 24.5-fold higher than that of the skin of Pinot Noir (conventional vineyard). Experiments showed that seeds of all four tested grape varieties are good sources of total flavonoids, not only of total phenolics. When referring to the organic vineyard, the skin and pulp grapes showed good results for the total phenolic content. The antioxidant activities of the hydroalcoholic extracts were well-correlated with the total phenolic content and total flavonoid content. Lower values of these parameters were found for extracts obtained from skin and pulp than for those obtained from seeds of the same grape variety regardless of the culture management system (organic/conventional). Data mining techniques such as regression analysis, principal component analysis, and clustering analysis were applied to establish the potential correlation between the phytochemical content and the antioxidant activities of the red grapes on the one hand, and grape variety, anatomical parts, and vineyard type (organic/conventional) on the other hand.
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Affiliation(s)
- Cristina Mihaela Nicolescu
- Institute of Multidisciplinary Research for Science Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania; (C.M.N.); (C.R.); (R.L.O.); (S.G.S.)
| | - Marius Bumbac
- Institute of Multidisciplinary Research for Science Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania; (C.M.N.); (C.R.); (R.L.O.); (S.G.S.)
- Faculty of Sciences and Arts, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania;
| | - Cristiana Radulescu
- Institute of Multidisciplinary Research for Science Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania; (C.M.N.); (C.R.); (R.L.O.); (S.G.S.)
- Faculty of Sciences and Arts, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania;
| | - Claudia Lavinia Buruleanu
- Faculty of Environmental Engineering and Food Science, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania
| | - Radu Lucian Olteanu
- Institute of Multidisciplinary Research for Science Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania; (C.M.N.); (C.R.); (R.L.O.); (S.G.S.)
- Faculty of Sciences and Arts, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania;
| | - Sorina Geanina Stanescu
- Institute of Multidisciplinary Research for Science Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania; (C.M.N.); (C.R.); (R.L.O.); (S.G.S.)
| | - Laura Monica Gorghiu
- Faculty of Sciences and Arts, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania;
| | - Bogdan Catalin Serban
- Research Centre for Nanotechnologies and Carbon-Based Nanomaterials, National Institute for Research and Development in Microtechnologies—IMT Bucharest, 126 A Erou Iancu Nicolae Str., 077190 Voluntari, Romania; (B.C.S.); (O.B.)
| | - Octavian Buiu
- Research Centre for Nanotechnologies and Carbon-Based Nanomaterials, National Institute for Research and Development in Microtechnologies—IMT Bucharest, 126 A Erou Iancu Nicolae Str., 077190 Voluntari, Romania; (B.C.S.); (O.B.)
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Bumbac M, Nicolescu CM, Olteanu RL, Gherghinoiu SC, Bumbac C, Tiron O, Manea EE, Radulescu C, Gorghiu LM, Stanescu SG, Serban BC, Buiu O. Preparation and Characterization of Microalgae Styrene-Butadiene Composites Using Chlorella vulgaris and Arthrospira platensis Biomass. Polymers (Basel) 2023; 15:1357. [PMID: 36987138 PMCID: PMC10055758 DOI: 10.3390/polym15061357] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 01/29/2023] [Revised: 03/06/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023] Open
Abstract
The food industry is a high consumer of polymer packing materials, sealing materials, and engineering components used in production equipment. Biobased polymer composites used in the food industry are obtained by incorporating different biogenic materials into the structure of a base polymer matrix. Renewable resources such as microalgae, bacteria, and plants may be used as biogenic materials for this purpose. Photoautotrophic microalgae are valuable microorganisms that are able to harvest sunlight energy and capture CO2 into biomass. They are characterized by their metabolic adaptability to environmental conditions, higher photosynthetic efficiency than terrestrial plants, and natural macromolecules and pigments. The flexibility of microalgae to grow in either low-nutrient or nutrient-rich environments (including wastewater) has led to the attention for their use in various biotechnological applications. Carbohydrates, proteins, and lipids are the main three classes of macromolecular compounds contained in microalgal biomass. The content in each of these components depends on their growth conditions. In general, proteins represent 40-70% of microalgae dry biomass, followed by carbohydrates (10-30%) and lipids (5-20%). A distinctive feature of microalgae cells is the presence of light-harvesting compounds such as photosynthetic pigments carotenoids, chlorophylls, and phycobilins, which are also receiving growing interest for applications in various industrial fields. The study comparatively reports on polymer composites obtained with biomass made of two species of green microalgae: Chlorella vulgaris and filamentous, gram-negative cyanobacterium Arthrospira. Experiments were conducted to reach an incorporation ratio of the biogenic material into the matrix in the 5-30% range, and the resulting materials were characterized by their mechanical and physicochemical properties.
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Affiliation(s)
- Marius Bumbac
- Faculty of Science and Arts, Valahia University of Targoviste, 13 Aleea Sinaia, 130004 Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13 Aleea Sinaia, 130004 Targoviste, Romania
| | - Cristina Mihaela Nicolescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13 Aleea Sinaia, 130004 Targoviste, Romania
| | - Radu Lucian Olteanu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13 Aleea Sinaia, 130004 Targoviste, Romania
| | - Stefan Cosmin Gherghinoiu
- Faculty of Science and Arts, Valahia University of Targoviste, 13 Aleea Sinaia, 130004 Targoviste, Romania
| | - Costel Bumbac
- National Research and Development Institute for Industrial Ecology-ECOIND, 57-73 Drumul Podu Dambovitei, District 6, 060652 Bucharest, Romania
| | - Olga Tiron
- National Research and Development Institute for Industrial Ecology-ECOIND, 57-73 Drumul Podu Dambovitei, District 6, 060652 Bucharest, Romania
| | - Elena Elisabeta Manea
- National Research and Development Institute for Industrial Ecology-ECOIND, 57-73 Drumul Podu Dambovitei, District 6, 060652 Bucharest, Romania
| | - Cristiana Radulescu
- Faculty of Science and Arts, Valahia University of Targoviste, 13 Aleea Sinaia, 130004 Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13 Aleea Sinaia, 130004 Targoviste, Romania
| | - Laura Monica Gorghiu
- Faculty of Science and Arts, Valahia University of Targoviste, 13 Aleea Sinaia, 130004 Targoviste, Romania
| | - Sorina Geanina Stanescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13 Aleea Sinaia, 130004 Targoviste, Romania
| | - Bogdan Catalin Serban
- IMT Bucharest, National Institute for Research and Development in Microtechnologies, 126A Erou Iancu Nicolae, 077190 Voluntari, Romania
| | - Octavian Buiu
- IMT Bucharest, National Institute for Research and Development in Microtechnologies, 126A Erou Iancu Nicolae, 077190 Voluntari, Romania
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Olteanu RL, Radulescu C, Bretcan P, Zinicovscaia I, Culicov O, Vergel K, Tanislav D, Bumbac M, Nicolescu CM, Dulama ID, Gorghiu LM. Geochemical Responses to Natural and Anthropogenic Settings in Salt Lakes Sediments from North-Eastern Romanian Plain. Int J Environ Res Public Health 2023; 20:935. [PMID: 36673692 PMCID: PMC9859558 DOI: 10.3390/ijerph20020935] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/23/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Chemical analysis was performed on sediment core samples collected from three salt lakes, Amara Lake, Caineni Lake, and Movila Miresii Lake, located in the northeast of the Romanian Plain. The concentration of 10 main elements, 6 heavy metals (HMs), 8 rare earth elements (REEs), and 10 trace elements (TEs)-determined using neutron activation analysis (NAA)-showed variability dependent on the depth sections, lake genesis and geochemical characteristics (oxbow, fluvial harbor/liman and loess saucer type). The assessment of pollution indices (contamination factor, pollution load index, geoaccumulation index, and enrichment factor) highlighted low and moderate degrees of contamination for most of the investigated elements. Principal component analysis (PCA) extracted three principal components, explaining 70.33% (Amara Lake), 79.92% (Caineni Lake), and 71.42% (Movila Miresii Lake) of the observed variability. The principal components extracted were assigned to pedological contribution (37.42%-Amara Lake, 55.88%-Caineni Lake, and 15.31%-Movila Miresii Lake), salts depositions (due to the lack of a constant supply of freshwater and through evaporation during dry periods), atmospheric deposition (19.19%-Amara Lake, 13.80%-Caineni Lake, and 10.80%-Movila Miresii Lake), leaching from soil surface/denudation, rock weathering, and mixed anthropogenic input (e.g., agricultural runoff, wastewater discharges) (13.72%-Amara Lake, 10.24%-Caineni Lake, and 45.31%-Movila Miresii Lake).
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Affiliation(s)
- Radu Lucian Olteanu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Cristiana Radulescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
- Faculty of Sciences and Arts, Valahia University of Targoviste, 130004 Targoviste, Romania
- Doctoral School Chemical Engineering and Biotechnology, Politehnica University of Bucharest, 060042 Bucharest, Romania
| | - Petre Bretcan
- Faculty of Humanities, Valahia University of Targoviste, 130105 Targoviste, Romania
| | - Inga Zinicovscaia
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 077125 Magurele, Romania
| | - Otilia Culicov
- Joint Institute for Nuclear Research, 141980 Dubna, Russia
- National Institute for Research and Development in Electrical Engineering ICPE-CA, 030138 Bucharest, Romania
| | | | - Danut Tanislav
- Faculty of Humanities, Valahia University of Targoviste, 130105 Targoviste, Romania
| | - Marius Bumbac
- Faculty of Sciences and Arts, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Cristina Mihaela Nicolescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Ioana Daniela Dulama
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Laura Monica Gorghiu
- Faculty of Sciences and Arts, Valahia University of Targoviste, 130004 Targoviste, Romania
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Murarescu O, Radulescu C, Dulama ID, Muratoreanu G, Pehoiu G, Stirbescu RM, Bucurica IA, Stanescu SG, Ionescu CA, Banica AL. Comprehensive Assessment of Tailing Dumps' Impact on Water Quality of Rivers, Lakes, and Wells from Mining Areas. Int J Environ Res Public Health 2022; 19:14866. [PMID: 36429587 PMCID: PMC9690115 DOI: 10.3390/ijerph192214866] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
This study is the third in a series of investigations conducted by the authors, and certainly the most comprehensive research regarding the former uranium, copper, and charcoal mines from a particular geographical area of Romania. In this respect, the present scientific incursion focused on two areas containing former extraction uranium ore sites, Ciudanovita and Lisava, as well as copper ore from Moldova Noua and charcoal mines from Anina, Banat Region, Romania. It highlighted that, for the first time, the heavy metal concentration was correlated with the values of physicochemical indicators of water (i.e., EC, DO, pH, resistivity, salinity, and ORP), by using multivariate analysis, to shape a regional based model on spatial distributions and the variability of toxic contaminants from the hydrographic basin of Banat, Romania, as a consequence of former uranium, copper, and charcoal mines. In this regard, 11 metals including Al, Cr, Mn, Fe, Ni, Co, Cu, Zn, Sr, Cd, and Pb from different water samples (well, spring, river, and lake), collected from three mining areas (uranium, copper, and coal mines) were investigated. Non-carcinogenic and carcinogenic health risks of seven heavy metals were assessed using the EDI, DIM, and THQ. The obtained THQ values were within the acceptable limits for cancer risks for adults, but as regards children, eight samples out of 18 proved toxic. However, the HRI and THQ average values for Cd (0.265 adults/0.996 children) and Pb (0.025 adults/0.095 children) for children were 3-4 times higher than those for adults. This is a source of concern as their prevalence in well water exposes children and residents in the Banat Region to the risk of various types of cancers.
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Affiliation(s)
- Ovidiu Murarescu
- Faculty of Humanities, Valahia University of Targoviste, 130105 Targoviste, Romania
| | - Cristiana Radulescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
- Faculty of Sciences and Arts, Valahia University of Targoviste, 130004 Targoviste, Romania
- Doctoral School Chemical Engineering and Biotechnology, Politehnica University of Bucharest, 060042 Bucharest, Romania
| | - Ioana Daniela Dulama
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - George Muratoreanu
- Faculty of Humanities, Valahia University of Targoviste, 130105 Targoviste, Romania
| | - Gica Pehoiu
- Faculty of Humanities, Valahia University of Targoviste, 130105 Targoviste, Romania
| | - Raluca Maria Stirbescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Ioan Alin Bucurica
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Sorina Geanina Stanescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Constantin Aurelian Ionescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Andreea Laura Banica
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
- Doctoral School Chemical Engineering and Biotechnology, Politehnica University of Bucharest, 060042 Bucharest, Romania
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Bretcan P, Tanislav D, Radulescu C, Serban G, Danielescu S, Reid M, Dunea D. Evaluation of Shallow Groundwater Quality at Regional Scales Using Adaptive Water Quality Indices. Int J Environ Res Public Health 2022; 19:10637. [PMID: 36078359 PMCID: PMC9517783 DOI: 10.3390/ijerph191710637] [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] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
Groundwater, which is the main source of water for human consumption in many rural areas, has its quality determined by the complex interaction of environmental factors and anthropogenic activities. The present study evaluated the quality of shallow groundwater (1 to 25 m depth) in the rural area of the Târgovişte Plain, a densely populated area (200 inhabitants/km2) using 80 water samples collected from public wells. In order to explain the spatial distribution of the concentrations of the 19 physicochemical parameters considered (including heavy metals), the evaluation of groundwater quality for human consumption and potential impact on human health was conducted using the Water Quality Index (WQI), Integrated Weight Water Quality Index (IwWQI), Total Hazard Index (THI), and cumulative carcinogenic risk (CCR). For the WQI/IwWQI the comparative analysis of the two indices showed that for the WQI, it is important to select an optimal set of parameters, because use of a large number of physicochemical parameters can eclipse the values that exceed WHO guideline limits. In contrast, the use of entropy in the calculation of the IwWQI did not lead to eclipsing of exceedance, no matter the number of parameters used. Areas with poor and very poor groundwater quality according to the WQI/IwWQI overlapped, with a moderate risk to human health (THI > 1) for noncarcinogenic contaminants and also a risk of developing cancer according to the CCR average value (1.15 × 10-2). The health of 43% of the rural population in the Târgovişte Plain can be affected if they drink contaminated groundwater, and it is estimated that about 600 people can develop cancer during their lifetime. If the risk of developing cancer is reduced only in the rural population that does not have access to a water source from a centralized and verified network, the results suggest that 385 people (1.15%) can develop cancer as a result of consuming groundwater contaminated with heavy metals based on the average value of CCR. This value is lower than the general mortality rate in areas with high CCR and below the average number of cancer patients in Romania (2.65%). The quality of groundwater and the risk of developing diseases and cancer due to water consumption is directly proportional to the intensity of agricultural land use and inversely proportional to the depth of the groundwater layer, the distance from the main hydrographic network and the reservoirs, and the distance from the main city, Târgovişte. The complex and integrated analysis of groundwater quality using quality indices and indicators of health risk for the population, validated by hot-spot analysis and compared to the mortality rate, is an approach with practical applicability. This integrated approach allows public authorities, policymakers, and health services to implement an efficient monitoring program and optimize anthropogenic activities in order to prevent groundwater contamination and finally improve the quality of life for the residents in the area of this study.
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Affiliation(s)
- Petre Bretcan
- Faculty of Humanities, Valahia University of Târgovişte, 130105 Târgovişte, Romania
| | - Danut Tanislav
- Faculty of Humanities, Valahia University of Târgovişte, 130105 Târgovişte, Romania
| | - Cristiana Radulescu
- Faculty of Sciences and Arts, Valahia University of Târgovişte, 130004 Târgovişte, Romania
| | - Gheorghe Serban
- Faculty of Geography, Babes-Bolyai University, 400084 Cluj-Napoca, Romania
| | - Serban Danielescu
- Fredericton Research and Development Centre, Environment and Climate Change Canada and Agriculture and Agri-Food Canada, Fredericton, NB E3B 4Z7, Canada
| | - Michael Reid
- Department of Geography and Planning, School of Humanities, Arts and Social Studies, University of New England, Armidale, NSW 2351, Australia
| | - Daniel Dunea
- Faculty of Environmental Engineering and Food Science, Valahia University of Târgovişte, 130004 Târgovişte, Romania
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Berdugo K, Radulescu C, Groh M, Peycelon M, Ciofu C, Clermidi P, Trefond L, Lefèvre G, Lanz C, Yonneau L, Aigrain Y, Chabaud M, Grapin C, Cathébras P, Chartier Kastler E, Berrebi D, Panel K, Kahn J. Cystite à éosinophiles idiopathique : analyse des caractéristiques cliniques, radiologiques, évolutives et de la réponse thérapeutique. Rev Med Interne 2022. [DOI: 10.1016/j.revmed.2022.03.250] [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: 11/24/2022]
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Radulescu C, Olteanu RL, Nicolescu CM, Bumbac M, Buruleanu LC, Holban GC. Vibrational Spectroscopy Combined with Chemometrics as Tool for Discriminating Organic vs. Conventional Culture Systems for Red Grape Extracts. Foods 2021; 10:foods10081856. [PMID: 34441634 PMCID: PMC8393556 DOI: 10.3390/foods10081856] [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: 06/18/2021] [Revised: 07/24/2021] [Accepted: 08/07/2021] [Indexed: 01/15/2023] Open
Abstract
Food plants provide a regulated source of delivery of functional compounds, plant secondary metabolites production being also tissue specific. In grape berries, the phenolic compounds, flavonoids and non-flavonoids, are distributed in the different parts of the fruit. The aim of this study was to investigate the applicability of FTIR and Raman screening spectroscopic techniques combined with multivariate statistical tools to find patterns in red grape berry parts (skin, seeds and pulp) according to grape variety and vineyard type (organic and conventional). Spectral data were acquired and processed using the same pattern for each different berry part (skin, seeds and pulp). Multivariate analysis has allowed a separation between extracts obtained from organic and conventional vineyards for each grape variety for all grape berry parts. The innovative approach presented in this work is low-cost and feasible, being expected to have applications in studies referring to the authenticity and traceability of foods. The findings of this study are useful as well in solving a great challenge that producers are confronting, namely the consumers’ distrust of the organic origin of food products. Further analyses of the chemical composition of red grapes may enhance the capability of the method of using both vibrational spectroscopy and chemometrics for discriminating the hydroalcoholic extracts according to grape varieties.
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Affiliation(s)
- Cristiana Radulescu
- Faculty of Sciences and Arts, Valahia University of Targoviste, 130004 Targoviste, Romania; (C.R.); (M.B.)
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania;
| | - Radu Lucian Olteanu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania;
- Correspondence:
| | - Cristina Mihaela Nicolescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania;
| | - Marius Bumbac
- Faculty of Sciences and Arts, Valahia University of Targoviste, 130004 Targoviste, Romania; (C.R.); (M.B.)
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania;
| | - Lavinia Claudia Buruleanu
- Faculty of Environmental Engineering and Food Science, Valahia University of Targoviste, 130004 Targoviste, Romania;
| | - Georgeta Carmen Holban
- Doctoral School, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania;
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Serban BC, Cobianu C, Buiu O, Bumbac M, Dumbravescu N, Avramescu V, Nicolescu CM, Brezeanu M, Pachiu C, Craciun G, Radulescu C. Ternary Nanocomposites Based on Oxidized Carbon Nanohorns as Sensing Layers for Room Temperature Resistive Humidity Sensing. Materials (Basel) 2021; 14:2705. [PMID: 34063918 PMCID: PMC8196599 DOI: 10.3390/ma14112705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/15/2021] [Accepted: 05/19/2021] [Indexed: 11/19/2022]
Abstract
This paper presents the relative humidity (RH) sensing response of a resistive sensor employing sensing layers based on a ternary nanocomposite comprising graphene oxide-oxidized carbon nanohorns-polyvinylpyrrolidone (GO-CNHox-PVP), at 1/1/1, 1/2/1, and 1/3/1 w/w/w mass ratios. The sensing structure is composed of a silicon substrate, a SiO2 layer, and interdigitated transducers (IDT) electrodes, on which the sensing layer is deposited via the drop-casting method. The morphology and the composition of the sensing layers are investigated through scanning electron microscopy (SEM) and RAMAN spectroscopy. The RH sensing capability of each carbonaceous nanocomposite-based thin film was analyzed by applying a current between the two electrodes and by measuring the voltage difference when varying the RH from 0% to 100% in humid nitrogen. The sensors have a room temperature response comparable to that of a commercial humidity sensor and are characterized by a rapid response, excellent linearity, good sensitivity, and recovery time. The manufactured sensing devices' transfer functions were established, and we extracted the response and recovery times. While the structures with GO/CNHox/PVP at 1/1/1 ratio (w/w/w) had the best performance in terms of relative sensibility, response time, and recovery time, the sensors employing the GO/CNHox/PVP nanocomposite at the 1/2/1 ratio (w/w/w) had the best linearity. Moreover, the ternary mixture proved to have much better sensing properties compared to CNHox and CNHox-PVP-based sensing layers in terms of sensitivity and linearity. Each component of the ternary nanocomposites' functional role is explained based on their physical and chemical properties. We analyzed the potential mechanism associated with the sensors' response; among these, the effect of the p-type semiconductor behavior of CNHox and GO, correlated with swelling of the PVP, was dominant and led to increased resistance of the sensing layer.
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Affiliation(s)
- Bogdan-Catalin Serban
- National Institute for Research and Development in Microtechnologies-IMT Bucharest, 126 A Erou Iancu Str., 077190 Voluntari, Romania
- Research Center for Integrated Systems, Nanotechnologies, and Carbon-Based Nanomaterials (CENASIC)-IMT, Str. Erou Iancu Nicolae 126A, 077190 Voluntari, Romania
| | - Cornel Cobianu
- National Institute for Research and Development in Microtechnologies-IMT Bucharest, 126 A Erou Iancu Str., 077190 Voluntari, Romania
- Research Center for Integrated Systems, Nanotechnologies, and Carbon-Based Nanomaterials (CENASIC)-IMT, Str. Erou Iancu Nicolae 126A, 077190 Voluntari, Romania
- Academy of Romanian Scientists, Science, and Technology of Information Section, Ilfov Str., nr. 3, Sector 5, 050044 Bucharest, Romania
| | - Octavian Buiu
- National Institute for Research and Development in Microtechnologies-IMT Bucharest, 126 A Erou Iancu Str., 077190 Voluntari, Romania
- Research Center for Integrated Systems, Nanotechnologies, and Carbon-Based Nanomaterials (CENASIC)-IMT, Str. Erou Iancu Nicolae 126A, 077190 Voluntari, Romania
| | - Marius Bumbac
- Sciences and Advanced Technologies Department, Faculty of Sciences and Arts, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania
- Institute of Multidisciplinary Research for Science Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania
| | - Niculae Dumbravescu
- National Institute for Research and Development in Microtechnologies-IMT Bucharest, 126 A Erou Iancu Str., 077190 Voluntari, Romania
- Research Center for Integrated Systems, Nanotechnologies, and Carbon-Based Nanomaterials (CENASIC)-IMT, Str. Erou Iancu Nicolae 126A, 077190 Voluntari, Romania
| | - Viorel Avramescu
- National Institute for Research and Development in Microtechnologies-IMT Bucharest, 126 A Erou Iancu Str., 077190 Voluntari, Romania
| | - Cristina Mihaela Nicolescu
- Institute of Multidisciplinary Research for Science Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania
| | - Mihai Brezeanu
- Faculty of Electronics, Telecommunications, and I.T., University Politehnica of Bucharest, Romania, 1-3 Iuliu Maniu Blvd., 6th district, 061071 Bucharest, Romania
| | - Cristina Pachiu
- National Institute for Research and Development in Microtechnologies-IMT Bucharest, 126 A Erou Iancu Str., 077190 Voluntari, Romania
| | - Gabriel Craciun
- National Institute for Research and Development in Microtechnologies-IMT Bucharest, 126 A Erou Iancu Str., 077190 Voluntari, Romania
| | - Cristiana Radulescu
- Sciences and Advanced Technologies Department, Faculty of Sciences and Arts, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania
- Institute of Multidisciplinary Research for Science Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004 Targoviste, Romania
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9
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Kerroumi S, Neuzillet Y, Soorojebally Y, Radulescu C, Talhi R, Taleb S, Herve CJ, Rouanne M, Abdou A, Bosset P, Bazzi A, Yousfi MJ, Lebret T. The impact of carcinoma in situ in ureteral margins during radical cystectomy: A case-controlled study. Urol Oncol 2021; 39:497.e1-497.e8. [PMID: 33579627 DOI: 10.1016/j.urolonc.2021.01.028] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/10/2021] [Accepted: 01/25/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND AND OBJECTIVE The presence of carcinoma in situ (Cis) in association with bladder cancer is associated with a poor prognosis. However, the prognosis associated with the presence of Cis in ureteral margins (CUM) during radical cystectomy has been poorly defined. To assess the prognosis associated with the presence of Cis in ureteral margins in patients with pM0 bladder cancer who have not undergone neoadjuvant chemotherapy. MATERIALS AND METHODS A retrospective case-control study was conducted between 2001 and 2016 using data from one academic center in France. From 1,450 radical cystectomies, 122 patients (case) who had CUM were matched according to age, sex, pTNM stage and urinary diversion method with a population sample of 122 patients (controls) who did not have Cis in ureteral margins during radical cystectomy. The survival analysis was performed by Kaplan-Meier using a (95%) CI. Multivariate Cox regression analysis was used to test the effect of CUM on cancer-specific survival. Recurrence-free survival was defined as a recurrence of urothelial carcinoma in the upper urinary tract. RESULTS AND LIMITATIONS The mean follow-up period was 55.43 ± 39.6 months. The rate of Cis in the bladder in the CUM cases group was evaluated at 11.47%. The median overall and specific survival was inferior in the CUM cases group estimated at 43.3 [35.33-56.93] months, 52.43 [42.16-68.93] months respectively compared to the control group with a significant difference (P= 0.001, P= 0.0039). The cumulative probability of urothelial recurrence-free survival was decreased in the case group compared with the control group (63.9% vs. 92.6%, P = 0.0001). Multivariate analysis shown that urothelial recurrence was associated with CUM [(P <0.001), (HR adjusted =11.31), (95% CI): (3.38-37.77)] and the macroscopic appearance of the ureter (thickened, dilated) [(P= 0.003), (HR adjusted =4.62), (95% CI): (3.31-8.84)]. CONCLUSION CUM is a poor prognostic factor that impacts cancer-specific survival and Recurrence-free survival. The presence of CUM has been independently associated with a significant increase in the risk of urothelial recurrence, and a decrease in both overall and specific survival. This supports the use of frozen section analysis to complete radical cystectomy without CUM.
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Affiliation(s)
- S Kerroumi
- Department of urology, EHU Oran, health and environment research laboratory, Faculty de medicine of Oran, university Oran1 Algeria.
| | - Y Neuzillet
- Department of urology, Hospital Foch, Versailles - Saint-Quentin-en-Yvelines university, Suresnes France
| | - Y Soorojebally
- Department of urology, Hospital Foch, Versailles - Saint-Quentin-en-Yvelines university, Suresnes France
| | - C Radulescu
- Department of pathology, hospital Foch, Suresnes. France
| | - R Talhi
- Department of statistical epidemiology, faculty of medicine, university Oran1 Algeria
| | - S Taleb
- Department of urology, EHU Oran, health and environment research laboratory, Faculty de medicine of Oran, university Oran1 Algeria
| | - C J Herve
- Department of urology, Hospital Foch, Versailles - Saint-Quentin-en-Yvelines university, Suresnes France
| | - M Rouanne
- Department of urology, Hospital Foch, Versailles - Saint-Quentin-en-Yvelines university, Suresnes France
| | - A Abdou
- Department of urology, Hospital Foch, Versailles - Saint-Quentin-en-Yvelines university, Suresnes France
| | - P Bosset
- Department of urology, Hospital Foch, Versailles - Saint-Quentin-en-Yvelines university, Suresnes France
| | - A Bazzi
- Department of urology, EHU Oran, health and environment research laboratory, Faculty de medicine of Oran, university Oran1 Algeria
| | - M J Yousfi
- Department of urology, EHU Oran, health and environment research laboratory, Faculty de medicine of Oran, university Oran1 Algeria
| | - T Lebret
- Department of urology, Hospital Foch, Versailles - Saint-Quentin-en-Yvelines university, Suresnes France
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10
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Radulescu C, Buruleanu LC, Nicolescu CM, Olteanu RL, Bumbac M, Holban GC, Simal-Gandara J. Phytochemical Profiles, Antioxidant and Antibacterial Activities of Grape ( Vitis vinifera L.) Seeds and Skin from Organic and Conventional Vineyards. Plants (Basel) 2020; 9:E1470. [PMID: 33143382 PMCID: PMC7694017 DOI: 10.3390/plants9111470] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/28/2020] [Accepted: 10/30/2020] [Indexed: 12/19/2022]
Abstract
The therapeutic benefits of extracts obtained from different red grape fractions were thoroughly studied, however, data regarding the comparison of phytochemical extracts prepared from the same varieties coming from organic versus conventional management systems are rather lacking. The present study aimed at comparing some of the phytochemical characteristics and antimicrobial activity of hydroalcoholic (50% v/v) extracts obtained from four varieties of red grapes cultivated respectively in organic and conventional vineyards. Total flavonoid content, total phenolic compounds, and antioxidant activity were determined by molecular absorption spectroscopy. Antimicrobial activity of the studied extracts was evaluated against common bacterial strains isolated from different habitats according to specific lab procedures. The analyses were performed in solid broths by applying the disk diffusion method, which allowed for the simultaneous determination of the spectrum of the sensitivity of the tested bacteria as well as the values of the minimum inhibition concentration (MIC). It was found that favorable antagonistic activities against the tested bacteria strains were exhibited by the hydroalcoholic extracts from the seeds of the organic varieties, respectively the skin of the conventional varieties.
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Affiliation(s)
- Cristiana Radulescu
- Faculty of Sciences and Arts, Valahia University of Targoviste, 130004 Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Lavinia Claudia Buruleanu
- Faculty of Environmental Engineering and Food Science, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Cristina Mihaela Nicolescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Radu Lucian Olteanu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Marius Bumbac
- Faculty of Sciences and Arts, Valahia University of Targoviste, 130004 Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Georgeta Carmen Holban
- Doctoral School, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania;
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo—Ourense Campus, E-32004 Ourense, Spain
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11
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Zarafu I, Matei L, Bleotu C, Ionita P, Tatibouët A, Păun A, Nicolau I, Hanganu A, Limban C, Nuta DC, Nemeș RM, Diaconu CC, Radulescu C. Synthesis, Characterization, and Biologic Activity of New Acyl Hydrazides and 1,3,4-Oxadiazole Derivatives. Molecules 2020; 25:E3308. [PMID: 32708236 PMCID: PMC7396991 DOI: 10.3390/molecules25143308] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/10/2020] [Accepted: 07/21/2020] [Indexed: 02/01/2023] Open
Abstract
Starting from isoniazid and carboxylic acids as precursors, thirteen new hydrazides and 1,3,4-oxadiazoles of 2-(4-substituted-phenoxymethyl)-benzoic acids were synthesized and characterized by appropriate means. Their biological properties were evaluated in terms of apoptosis, cell cycle blocking, and drug metabolism gene expression on HCT-8 and HT-29 cell lines. In vitro antimicrobial tests were performed by the microplate Alamar Blue assay for the anti-mycobacterial activities and an adapted agar disk diffusion technique for other non-tubercular bacterial strains. The best antibacterial activity (anti-Mycobacterium tuberculosis effects) was proved by 9. Compounds 7, 8, and 9 determined blocking of G1 phase. Compound 7 proved to be toxic, inducing apoptosis in 54% of cells after 72 h, an effect that can be predicted by the increased expression of mRNA caspases 3 and 7 after 24 h. The influence of compounds on gene expression of enzymes implicated in drug metabolism indicates that synthesized compounds could be metabolized via other pathways than NAT2, spanning adverse effects of isoniazid. Compound 9 had the best antibacterial activity, being used as a disinfectant agent. Compounds 7, 8, and 9, seemed to have antitumor potential. Further studies on the action mechanism of these compounds on the cell cycle may bring new information regarding their biological activity.
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Affiliation(s)
- Irina Zarafu
- Faculty of Chemistry, University of Bucharest, 050663 Bucharest, Romania; (P.I.); (A.P.); (I.N.)
| | - Lilia Matei
- “Stefan S Nicolau” Institute of Virology, Romanian Academy, 030304 Bucharest, Romania; (L.M.); (C.B.); (C.C.D.)
- Research Institute of the University of Bucharest (ICUB), Life, Environmental and Earth Sciences Division, University of Bucharest, 060023 Bucharest, Romania;
| | - Coralia Bleotu
- “Stefan S Nicolau” Institute of Virology, Romanian Academy, 030304 Bucharest, Romania; (L.M.); (C.B.); (C.C.D.)
- Research Institute of the University of Bucharest (ICUB), Life, Environmental and Earth Sciences Division, University of Bucharest, 060023 Bucharest, Romania;
| | - Petre Ionita
- Faculty of Chemistry, University of Bucharest, 050663 Bucharest, Romania; (P.I.); (A.P.); (I.N.)
| | - Arnaud Tatibouët
- Institute of Organic and Analytical Chemistry ICOA-UMR7311, University of Orleans, 45067 Orleans, France;
| | - Anca Păun
- Faculty of Chemistry, University of Bucharest, 050663 Bucharest, Romania; (P.I.); (A.P.); (I.N.)
| | - Ioana Nicolau
- Faculty of Chemistry, University of Bucharest, 050663 Bucharest, Romania; (P.I.); (A.P.); (I.N.)
| | - Anamaria Hanganu
- Research Institute of the University of Bucharest (ICUB), Life, Environmental and Earth Sciences Division, University of Bucharest, 060023 Bucharest, Romania;
- Institute of Organic Chemistry “C.D. Nenitescu” of the Romanian Academy, 060023 Bucharest, Romania
| | - Carmen Limban
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (C.L.); (D.C.N.)
| | - Diana Camelia Nuta
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (C.L.); (D.C.N.)
| | - Roxana Maria Nemeș
- National Institute of Pneumology Marius Nasta, 050152 Bucharest, Romania;
| | - Carmen Cristina Diaconu
- “Stefan S Nicolau” Institute of Virology, Romanian Academy, 030304 Bucharest, Romania; (L.M.); (C.B.); (C.C.D.)
| | - Cristiana Radulescu
- Faculty of Sciences and Arts, “Valahia” University of Targoviste, 130004 Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13004 Targoviste, Romania
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12
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Kerroumi S, Neuzillet Y, Talhi R, Soorojebally Y, Taleb S, Radulescu C, Herve J, Rouanne M, Abdou A, Bosset P, Bazzi A, Yousfi M, Lebret T. L’impact du Cis dans les recoupes urétérales lors de la cystectomie sur la survie : étude cas-témoin. Prog Urol 2019. [DOI: 10.1016/j.purol.2019.08.229] [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: 11/15/2022]
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13
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Girard A, Rouanne M, Radulescu C, Le stanc E, Grellier J, Lebret T. L’analyse combinée de la TEP au 18F-FDG et de la TDM améliore le bilan d’extension ganglionnaire initial des cancers de la vessie infiltrants. Prog Urol 2019. [DOI: 10.1016/j.purol.2019.08.231] [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: 10/25/2022]
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14
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Kaulanjan K, Beurrier S, Neuzillet Y, Radulescu C, Lestanc E, Lebret T. Utilisation de la TEP Choline en 2019 : expérience monocentrique. Prog Urol 2019. [DOI: 10.1016/j.purol.2019.08.137] [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: 11/16/2022]
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15
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David M, Serban A, Radulescu C, Danet AF, Florescu M. Bioelectrochemical evaluation of plant extracts and gold nanozyme-based sensors for total antioxidant capacity determination. Bioelectrochemistry 2019; 129:124-134. [PMID: 31158797 DOI: 10.1016/j.bioelechem.2019.05.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [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: 02/18/2019] [Revised: 05/17/2019] [Accepted: 05/21/2019] [Indexed: 11/26/2022]
Abstract
The antioxidant properties of different plant extracts are usually claimed and used by food, medicine and cosmetic industry due to their health promoting capacities. In this study the presence of antioxidant compounds and the total antioxidant capacity of water-soluble extracts, prepared using two extraction methods and a variety of solvents, have been determined and a rapid screening method has been developed. Plant extracts characterisation, composition and antioxidant properties were confirmed by FTIR and Raman spectroscopies. Voltammetry, amperometry and electrochemical impedance were used to highlight the total antioxidant capacity of each extract using an electrochemical gold nanozyme-sensor based on the enzyme-like catalytic activity of gold nanoparticles. Both anodic area of cyclic voltammograms (10.31 μA V) and electrochemical index (153) calculated using differential potential voltammetry show the total content of antioxidant compounds, allowing to discriminate between different extracts. Amperometric total antioxidant capacity measurements were associated with those from classical chemiluminescence and good correlation has been found (Pearson's correlation coefficient of 0.958).
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Affiliation(s)
- Melinda David
- Faculty of Medicine, Transilvania University of Brasov, Colina Universitatii nr 1, Corp C, room CI30, Brasov 500068, Romania
| | - Adrian Serban
- Faculty of Medicine, Transilvania University of Brasov, Colina Universitatii nr 1, Corp C, room CI30, Brasov 500068, Romania
| | - Cristiana Radulescu
- Faculty of Science and Arts, Department of Science and Advanced Technologies, Romania and Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 18 - 24 Unirii Boulevard, Targoviste 130082, Romania
| | - Andrei Florin Danet
- Department of Analytical Chemistry, University of Bucharest, Şos. Panduri 90-92, Bucharest 050657, Romania
| | - Monica Florescu
- Faculty of Medicine, Transilvania University of Brasov, Colina Universitatii nr 1, Corp C, room CI30, Brasov 500068, Romania.
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16
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Pehoiu G, Radulescu C, Murarescu O, Dulama ID, Bucurica IA, Teodorescu S, Stirbescu RM. Health Risk Assessment Associated with Abandoned Copper and Uranium Mine Tailings. Bull Environ Contam Toxicol 2019; 102:504-510. [PMID: 30759262 DOI: 10.1007/s00128-019-02570-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 02/07/2019] [Indexed: 06/09/2023]
Abstract
This study aims to investigate the dose rate and pollution level of Ciudanovita, Lisava, Anina, and Moldova Noua mining tailing dumps. In order to accomplish this, soil samples were collected according to LUCAS 2009/2012, in the summer of 2017. To start with, these samples were measured in situ for dose rate and revealed some interesting aspects, following this, they were investigated in the laboratory using different physico-chemical methods for more complex data. Therefore, two techniques have been used for structural investigation that revealed some particularities in terms of morphology, color and shape (optical microscopy, scanning electron microscopy) and, two for chemical composition (Fourier transform infrared spectroscopy and inductive coupled plasma mass spectrometry), which provided the qualitative confirmation of chemical groups involved in soil composition along with the heavy and radioactive metals presence (i.e. Pb, U, Cu, Cr, Cd, Ni, Zn, and Mn), expressed also by contamination factor.
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Affiliation(s)
- Gica Pehoiu
- Faculty of Humanities, Valahia University of Targoviste, 130105, Targoviste, Romania
| | - Cristiana Radulescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004, Targoviste, Romania.
- Faculty of Sciences and Arts, Valahia University of Targoviste, 130004, Targoviste, Romania.
| | - Ovidiu Murarescu
- Faculty of Humanities, Valahia University of Targoviste, 130105, Targoviste, Romania
| | - Ioana Daniela Dulama
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004, Targoviste, Romania
| | - Ioan Alin Bucurica
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004, Targoviste, Romania
| | - Sofia Teodorescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004, Targoviste, Romania
| | - Raluca Maria Stirbescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 13 Sinaia Alley, 130004, Targoviste, Romania
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17
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Radulescu C, Olteanu RL, Stihi C, Florescu M, Lazurca D, Dulama ID, Stirbescu RM, Teodorescu S. Chemometric Assessment of Spectroscopic Techniques and Antioxidant Activity for Hippophae rhamnoidesL. Extracts Obtained by Different Isolation Methods. ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1590379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Cristiana Radulescu
- Faculty of Sciences and Arts, Valahia University of Targoviste, Targoviste, Romania
- Valahia University of Targoviste, Institute of Multidisciplinary Research for Science and Technology, Targoviste, Romania
| | - Radu Lucian Olteanu
- Valahia University of Targoviste, Institute of Multidisciplinary Research for Science and Technology, Targoviste, Romania
| | - Claudia Stihi
- Faculty of Sciences and Arts, Valahia University of Targoviste, Targoviste, Romania
- Valahia University of Targoviste, Institute of Multidisciplinary Research for Science and Technology, Targoviste, Romania
| | - Monica Florescu
- Department of Fundamentals, Prophylactic and Clinic Disciplines, Transilvania University of Brasov, Brasov, Romania
| | | | - Ioana Daniela Dulama
- Valahia University of Targoviste, Institute of Multidisciplinary Research for Science and Technology, Targoviste, Romania
| | - Raluca Maria Stirbescu
- Valahia University of Targoviste, Institute of Multidisciplinary Research for Science and Technology, Targoviste, Romania
| | - Sofia Teodorescu
- Valahia University of Targoviste, Institute of Multidisciplinary Research for Science and Technology, Targoviste, Romania
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18
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Bintintan A, Gligor M, Radulescu C, Dulama ID, Lucian Olteanu R, Teodorescu S, Stirbescu RM, Bucurica IA. Multielemental and Chemical Characterization of Eneolithic Petresti Painted Pottery from the Alba Iulia-Lumea Noua Archaeological Site, Romania. ANAL LETT 2019. [DOI: 10.1080/00032719.2018.1560459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Alina Bintintan
- Decembrie 1918 University of Alba Iulia, Alba Iulia, Romania
| | - Mihai Gligor
- Decembrie 1918 University of Alba Iulia, Alba Iulia, Romania
| | - Cristiana Radulescu
- Faculty of Science and Arts, Valahia University of Targoviste, Targoviste, Romania
| | - Ioana Daniela Dulama
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Radu Lucian Olteanu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Sofia Teodorescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Raluca Maria Stirbescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Ioan Alin Bucurica
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
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19
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Buruleanu LC, Radulescu C, Antonia Georgescu A, Dulama ID, Nicolescu CM, Lucian Olteanu R, Stanescu SG. Chemometric Assessment of the Interactions Between the Metal Contents, Antioxidant Activity, Total Phenolics, and Flavonoids in Mushrooms. ANAL LETT 2018. [DOI: 10.1080/00032719.2018.1528268] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Lavinia Claudia Buruleanu
- Faculty of Environmental Engineering and Food Science, Valahia University of Targoviste, Targoviste, Romania
| | - Cristiana Radulescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
- Faculty of Sciences and Arts, Valahia University of Targoviste, Targoviste, Romania
| | - Andreea Antonia Georgescu
- Faculty of Environmental Engineering and Food Science, Valahia University of Targoviste, Targoviste, Romania
| | - Ioana Daniela Dulama
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Cristina Mihaela Nicolescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Radu Lucian Olteanu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Sorina Geanina Stanescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
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20
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Meunier M, Neuzillet Y, Raynaud J, Radulescu C, Fiet J, Giton F, Rouanne M, Dreyfus J, Lebret T, Botto H. Concentrations d’androgènes sériques et intraprostatiques : comparaison de patients atteints de cancer de prostate et d’hypertrophie bénigne de prostate. Prog Urol 2018. [DOI: 10.1016/j.purol.2018.07.143] [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: 10/28/2022]
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21
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Betari R, Rouanne M, Radulescu C, Goubar A, Signolle N, Neuzillet Y, Allory Y, Marabelle A, Adam J, Lebret T. Évaluation de l’infiltrat lymphocytaire dans les tumeurs de la vessie t1 de haut grade : quelle valeur pronostique ? Prog Urol 2018. [DOI: 10.1016/j.purol.2018.07.196] [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: 11/16/2022]
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Murarescu O, Pehoiu G, Radulescu C, Dulama ID, Teodorescu S, Stirbescu RM, Muratoreanu G. Chemical Composition Assessment of Sulphurous Waters. Rev Chim 2018. [DOI: 10.37358/rc.18.5.6256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The study aims to assess the chemical composition of sulphurous spring waters collected from Pucioasa � Vulcana Bai balneotherapeutical area, Dambovita County. The sampling were achieved from active and preserved sulphurous sources (i.e. five springs), during the summer period of the year 2016. The content of nine metals (i.e. Cr, Mn, Fe, Co, Ni, Cu, Cd, Zn, and Pb) in water samples was determined by Inductively Coupled Plasma - Mass Spectroscopy (ICP-MS). The relationships between physicochemical parameters (i.e. pH, conductivity, TDS, salinity, total hardness and dissolved oxygen) and metal concentrations were investigated, as well.
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Meunier ME, Neuzillet Y, Radulescu C, Cherbonnier C, Hervé JM, Rouanne M, Molinié V, Lebret T. [Does the delay from prostate biopsy to radical prostatectomy influence the risk of biochemical recurrence?]. Prog Urol 2018; 28:475-481. [PMID: 29907495 DOI: 10.1016/j.purol.2018.05.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 08/29/2017] [Revised: 03/19/2018] [Accepted: 05/15/2018] [Indexed: 10/14/2022]
Abstract
INTRODUCTION The influence of the delay between prostate biopsy and radical prostatectomy for patients with localized prostate cancer is controversial. The objective of this study was to establish a time limit between prostate biopsy and radical prostatectomy beyond which the risks of upgradging and biochemical recurrence (BCR) are increased. MATERIAL AND METHODS Between January 2013 and January 2017, a retrospective analysis of the clinical, biological and histological data of 513 patients treated with radical prostatectomy for localized prostate cancer was performed in a single center. The primary endpoint was the assessment of the risk of BCR by the difference between post-biopsy USCF-CAPRA and post-surgical CAPRA-S scores. The secondary endpoint was the evaluation of the upgrading by the difference between the Gleason score on biopsy and on surgical specimen. The risks of BCR and upgrading were compared by Student test according to different delays between prostate biopsy and radical prostatectomy. The shortest delays for which a significant difference was found were reported. RESULTS In this study, 513 patients were included. The median age at the time of the biopsy was 65 years (IQR: 60-69). The median preoperative PSA was 7.30ng/mL (IQR: 5.60-9.94). The median time between biopsy and surgery was 108 days (IQR: 86-141). For the entire cohort, the risk of BCR was significantly higher above a threshold of 90 days (P=0.039). No threshold was found for Gleason 6(3+3) patients. A 90-day threshold was found for Gleason 7(3+4) patients (P=0.038). Gleason patients≥8 had more upgrading beyond a 60-day threshold (P=0.040). CONCLUSION Our study showed that after a 3 months delay, the risk of BCR was significantly higher for localized prostate cancer. It seemed possible to extend this period for low-risk patients, whereas it seemed necessary to keep it for intermediate-risks and to reduce it to 2 months for high-risks. LEVEL OF EVIDENCE 4.
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Affiliation(s)
- M E Meunier
- Service d'urologie et de transplantation rénale, hôpital Foch, 92151 Suresnes, France
| | - Y Neuzillet
- Service d'urologie et de transplantation rénale, hôpital Foch, 92151 Suresnes, France; UFR des sciences de la santé Simone-Veil, université de Versailles-Saint-Quentin-en-Yvelines, 40, rue Worth, 92150 Suresnes, France.
| | - C Radulescu
- Service d'anatomopathologie, hôpital Foch, 92151 Suresnes, France
| | - C Cherbonnier
- Service d'anatomopathologie, hôpital Foch, 92151 Suresnes, France
| | - J-M Hervé
- Service d'urologie et de transplantation rénale, hôpital Foch, 92151 Suresnes, France
| | - M Rouanne
- Service d'urologie et de transplantation rénale, hôpital Foch, 92151 Suresnes, France; UFR des sciences de la santé Simone-Veil, université de Versailles-Saint-Quentin-en-Yvelines, 40, rue Worth, 92150 Suresnes, France
| | - V Molinié
- Service d'anatomopathologie, centre hospitalier de Martinique, 93232 Le Lamentin, France
| | - T Lebret
- Service d'urologie et de transplantation rénale, hôpital Foch, 92151 Suresnes, France; UFR des sciences de la santé Simone-Veil, université de Versailles-Saint-Quentin-en-Yvelines, 40, rue Worth, 92150 Suresnes, France
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Buruleanu LC, Radulescu C, Georgescu AA, Danet FA, Olteanu RL, Nicolescu CM, Dulama ID. Statistical Characterization of the Phytochemical Characteristics of Edible Mushroom Extracts. ANAL LETT 2018. [DOI: 10.1080/00032719.2017.1366499] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Lavinia Claudia Buruleanu
- Faculty of Environmental Engineering and Food Science, Valahia University of Targoviste, Targoviste, Romania
| | - Cristiana Radulescu
- Faculty of Science and Arts, Valahia University of Targoviste, Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Andreea Antonia Georgescu
- Faculty of Environmental Engineering and Food Science, Valahia University of Targoviste, Targoviste, Romania
- Doctoral School of Chemistry, University of Bucharest, Bucharest, Romania
| | - Florin Andrei Danet
- Faculty of Chemistry, Department of Analytical Chemistry, University of Bucharest, Bucharest, Romania
| | - Radu Lucian Olteanu
- Faculty of Environmental Engineering and Food Science, Valahia University of Targoviste, Targoviste, Romania
| | - Cristina Mihaela Nicolescu
- Faculty of Environmental Engineering and Food Science, Valahia University of Targoviste, Targoviste, Romania
| | - Ioana Daniela Dulama
- Faculty of Environmental Engineering and Food Science, Valahia University of Targoviste, Targoviste, Romania
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Georgescu AA, Danet AF, Radulescu C, Stihi C, Dulama ID, Buruleanu CL. Nutritional and Food Safety Aspects Related to the Consumption of Edible Mushrooms from Dambovita County in Correlation with their Levels of Some Essential and Non-essential Metals. Rev Chim 2017. [DOI: 10.37358/rc.17.10.5894] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Ten edible mushroom species collected from four sites of Dambovita County, Romania, were analyzed through ICP-MS technique in order to evaluate their content in Fe, Cu, Zn, Pb and Cd, both in cap and stipe. Wild growing species (Russula vesca, Russula alutacea, Macrolepiota procera, Cantharellus cibarius, Boletus edulis, Agaricus campestris and Pleurotus ostreatus) and cultivated species (Pleurotus ostreatus, Agaricus bisporus white and Agaricus bisporus brown) were taken into account. The data related to the elemental composition of the fruiting bodies of mushrooms are important to be known having in view the nutritional and food safety related aspects. Higher concentrations of copper, iron and zinc have been found in Pleurotus ostreatus (cap), Macrolepiota procera (stipe) and Pleurotus ostreatus cultivated (cap) respectively, as follows: 43.90�0.96 mg/g d.w., 715.15�4.52 mg/g d.w. and 379.33�2.05 mg/g d.w. Although significant Health Risk Index were determined for lead in Agaricus campestris (about 0.1 both in cap and stipe) and for cadmium in Pleurotus ostreatus (0.58 in cap), these values are under the regulated PTWI limits for adult person.
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Modestine JRD, Neuzillet Y, Herve J, Bohin D, Lugagne P, Saporta F, Pichon A, Bosset P, Radulescu C, Lebret T. Évolution des indications de la prostatectomie radicale au cours des dix dernières années. Prog Urol 2017. [DOI: 10.1016/j.purol.2017.07.092] [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: 10/18/2022]
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Molinié V, Radulescu C, Neuzillet Y, Botto H, Lebret T, Raynaud J. Relecture des pièces de prostatectomie de l’étude ANDROCAN. Prog Urol 2017. [DOI: 10.1016/j.purol.2017.07.018] [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: 11/17/2022]
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28
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Cheddani L, Radulescu C, Chaignon M, Karras A, Duong J, Perchenet A, Herel C, Tabibzadeh N, Letavernier E, Haymann J, Delahousse M. Rigidité aortique, mortalité, microvascularisation du greffon et retour en dialyse : à propos d’une cohorte de 220 transplantés rénaux. Nephrol Ther 2017. [DOI: 10.1016/j.nephro.2017.08.041] [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: 10/18/2022]
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Radulescu C, Stihi C, Ilie M, Lazurcă D, Gruia R, Olaru OT, Bute OC, Dulama ID, Stirbescu RM, Teodorescu S, Florescu M. Characterization of Phenolics in Lavandula angustifolia. ANAL LETT 2017. [DOI: 10.1080/00032719.2016.1264409] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Cristiana Radulescu
- Department of Sciences and Advanced Technologies, Faculty of Science and Arts, Valahia University of Targoviste, Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Claudia Stihi
- Department of Sciences and Advanced Technologies, Faculty of Science and Arts, Valahia University of Targoviste, Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Mihaela Ilie
- Department of Toxicology, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | | | - Romulus Gruia
- Department for Engineering and Management in Food and Tourism, Transilvania University of Brasov, Brasov, Romania
| | - Octavian Tudorel Olaru
- Department of Botany and Cellular Biology, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Oana Catalina Bute
- Department of Sciences and Advanced Technologies, Faculty of Science and Arts, Valahia University of Targoviste, Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Ioana Daniela Dulama
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Raluca Maria Stirbescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Sofia Teodorescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Monica Florescu
- Department of Fundamentals, Prophylactic and Clinic Disciplines, Transilvania University of Brasov, Brasov, Romania
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Stihi C, Popescu IV, Frontasyeva M, Radulescu C, Ene A, Culicov O, Zinicovscaia I, Dulama ID, Cucu-Man S, Todoran R, Gheboianu AI, Bucurica A, Bancuta I, Dima G. Characterization of Heavy Metal Air Pollution in Romania Using Moss Biomonitoring, Neutron Activation Analysis, and Atomic Absorption Spectrometry. ANAL LETT 2017. [DOI: 10.1080/00032719.2016.1275661] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Claudia Stihi
- Faculty of Sciences and Arts, Valahia University of Targoviste, Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Ion V. Popescu
- Faculty of Sciences and Arts, Valahia University of Targoviste, Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Marina Frontasyeva
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna, Russian Federation
| | - Cristiana Radulescu
- Faculty of Sciences and Arts, Valahia University of Targoviste, Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Antoaneta Ene
- Faculty of Sciences and Environment, Dunarea de Jos University of Galati, Galati, Romania
| | - Otilia Culicov
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna, Russian Federation
- National Institute for Research and Development in Electrical Engineering, Bucharest, Romania
| | - Inga Zinicovscaia
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna, Russian Federation
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Magurele, Romania
| | - Ioana Daniela Dulama
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Simona Cucu-Man
- Faculty of Chemistry, Alexandru Ioan Cuza University of Iasi, Iasi, Romania
| | - Radu Todoran
- Technical University of Cluj-Napoca, North University Center, Baia Mare, Romania
| | - Anca Irina Gheboianu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Alin Bucurica
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Iulian Bancuta
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
| | - Gabriel Dima
- Faculty of Sciences and Arts, Valahia University of Targoviste, Targoviste, Romania
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviste, Romania
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Moater EI, Radulescu C, Ionita I. The Spectrophotometric and Tensiometric Study of Interaction Between Nonionic Surfactants with Acid Dye. Rev Chim 2017. [DOI: 10.37358/rc.17.5.5600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The study of the interaction between nonionic surfactants and acid dyes is very important in clarifying the mechanism of wool dyeing and colors preservation and also for the washing conditions determination.
This paper presents the spectrophotometric and tensiometric data of the interaction between the alkyl polyglucosides surfactants class with new synthesized dye, from the class of azoic dyes derived from 3H-aza-1-oxa-2H-tioxo-5,8-fenalendisulfonic acid. A multiplicity of transitions is observed, when the surface tension of aqueous solutions of nonionic surfactant (APG) in the presence of the acid dye, which interacts strongly with nonionic surfactant to from a dye-surfactant complex, is measured at a constant concentration of the dye and plotted as a function of surfactant concentration. The formation of some surfactant- dye complexes was made evident in the different molecular ratios in the submicellar zone compared to the micellar zone of concentration of the surfactant. There au different equilibrium in the system which compete one another over a large scale of surfactant concentration (adsorption, micellization, small complex formation, large complex �mixed micelles formation).
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Iordache S, Dunea D, Radulescu C, Dulama ID, Ianache R, Predescu M. Investigation of Heavy Metals Content in Airborne Particles from Ploiesti, Romania. Rev Chim 2017. [DOI: 10.37358/rc.17.4.5570] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This study aims to evaluate the concentrations of heavy metals in airborne particulate matter (PM) collected in Ploiesti city (Romania) during the monitoring campaigns performed in 2015. Various health effects of airborne PM, from less serious to very serious ones, are often associated with its chemical speciation. The heavy metals bounded on PM may accumulate in human body by inhalation and can produce both short-term and long-term negative health effects especially in children and sensitive people. We investigated several heavy metals associated with PM2.5 collected in 12 relevant sampling points to estimate their potential impact on urban population health. PM samples were collected on 37 mm quartz fiberglass filters using a precision optical instrument i.e., DustTrak DRX8533EP. The deposition of elements on the surface of samples was determined using a scanning electron microscope (SEM). The analysis and quantification of trace elements were performed using Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). The experiments indicated that samples of PM contained heavy metals in the following order Zn ] Ni ] Cr ] Pb ] As ] Cd. Monitoring of elemental composition in atmospheric particles can contribute to a better air quality management.
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Radulescu C, Stihi C, Iordache S, Dunea D, Dulama ID. Characterization of Urban Atmospheric PM2.5 by ATR-FTIR, ICP-MS and SEM-EDS Techniques. Rev Chim 2017. [DOI: 10.37358/rc.17.4.5557] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The study aims to investigate the chemical composition of airborne particulate matter with size below 2.5 �m (PM2.5) collected from Targoviste City area, in the summer of 2015. For this consideration eleven representative points have been chosen for sampling. This research provides interesting data which can clarify the relationship between PM2.5 exposure and the negative effects on human health at urban area level. Three analytical techniques have been developed for the qualitative, quantitative and morphological characterization of PM2.5. The inorganic and organic functional groups of the PM2.5 samples were investigated by Attenuated Total Reflectance - Fourier Transform Infrared Spectrometry (ATR-FTIR). The content of several elements (i.e. Pb, Cd, Cr, Ni, Cu, Mn, Al, Zn and Fe) in samples was determined by Inductively Coupled Plasma - Mass Spectrometry (ICP-MS). The measured concentration of these metals was compared with values reported by the International Agency on urban area in order to establish the minimal element level which cannot be considered as a potential health risk for the urban population. The morphological characterization of PM2.5 was performed by Scanning Electron Microscopy - Energy Dispersive Spectrometry (SEM-EDS). The elemental analysis of samples were performed by EDS and showed that airborne particle was mainly composed of elements, such as C, O, Si, Ca, N and S.
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Stihi C, Radulescu C, Dulama ID, Bute OC, Bucurica IA. Characterization of Heavy Metals Atmospheric Deposition for Assessment of Environmental Quality in Urban and Surrounding Areas. Rev Chim 2017. [DOI: 10.37358/rc.17.4.5556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The atmospheric deposition of Cu, Cd and Pb in urban and surrounding areas was investigated by using mosses as bioindicators. A total of 92 moss samples were collected from central and south-west parts of Romania. The content of Cu, Cd and Pb was determined by graphite furnace/flame atomic absorption spectrometry. Median values for Cu (8.217 mg/kg dw), Cd (1.299 mg/kg dw) and Pb (29.844 mg/kg dw) are high compared to other European countries. The evaluation of the sampling sites contamination was made using the contamination factor. Sites with a severe contamination with Cd and Pb were identified.
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Bintintan A, Gligor M, Dulama ID, Teodorescu S, Stirbescu RM, Radulescu C. ATR-FTIR and SEM-EDS Analyses of Lumea Noua Painted Pottery from Alba Iulia-Lumea Noua Neolithic Site. Rev Chim 2017. [DOI: 10.37358/rc.17.4.5564] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This study aims to investigatea possible link between the painted pottery from the Alba Iulia-Lumea Nou� settlement and the potential clay sources identified in the proximity of the archaeological site. Sixteen samples (clay and pottery) were collected and afterwards analyzed through two analytical techniques (attenuated total reflection - Fourier transform infrared spectrometry and scanning electron microscopy coupled with energy dispersive spectrometry). The recorded data show similarities for both techniques and give preliminary information regarding the clay composition used for pottery manufacturing in middle Neolithic. Cluster analysis using Average Linkage method correlated the clay sources with the analyzed painted pottery.
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Slaoui H, Neuzillet Y, Rouanne M, Lugagne-Delpon P, Abdou A, Ghoneim T, Scherrer A, Radulescu C, Molinié V, Lebret T. Le score de Gleason est-il corrélé au score PIRADS défini par l’IRM prostatique multiparamétrique ? Prog Urol 2016. [DOI: 10.1016/j.purol.2016.07.284] [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: 10/20/2022]
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Pichon A, Neuzillet Y, Slaoui H, Radulescu C, Molinié V, Raynaud J, Botto H, Lebret T. Validation d’un nouveau modèle de classification histologique du cancer de prostate. Prog Urol 2016. [DOI: 10.1016/j.purol.2016.07.153] [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: 10/20/2022]
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Dunea D, Iordache S, Liu HY, Bøhler T, Pohoata A, Radulescu C. Quantifying the impact of PM2.5 and associated heavy metals on respiratory health of children near metallurgical facilities. Environ Sci Pollut Res Int 2016; 23:15395-406. [PMID: 27115705 PMCID: PMC4956698 DOI: 10.1007/s11356-016-6734-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 04/20/2016] [Indexed: 05/22/2023]
Abstract
The aim of this study was to link the concentrations of particulate matter with an aerodynamic diameter below 2.5 μm (PM2.5) and associated heavy metals with occurrence of wheezing and hospitalizations due to wheezing in 111 children who live near metallurgical plants in Targoviste City, Romania. A group of 72 children with high levels of immunoglobulin E (IgE) and eosinophils, as well as frequent wheezing episodes, was geolocated on digital thematic maps. Monitoring campaigns and medical assessments were performed over two consecutive years (2013-2014). The multiannual average concentrations of PM2.5 ranged from 4.6 to 22.5 μg m(-3), up to a maximum value of 102 μg m(-3). Significant correlations (p < 0.01) were observed between the locations of the children with respiratory issues and the PM2.5 multiannual average (r = 0.985) and PM2.5 maximum (r = 0.813). Fe, Ni, Cd, and Cr were the main marker elements of the emissions from steel production and metal-working facilities in the Targoviste area. The results support the hypothesis that increased PM2.5 levels directly influence wheezing symptom and asthma attacks in the analyzed group. IgE, eosinophils, and wheezing episodes may be considered key indicators with which to evaluate the adverse effects of PM2.5 air pollution on children's health.
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Affiliation(s)
- Daniel Dunea
- Valahia University of Targoviste, Aleea Sinaia no. 13, RO-130004, Targoviste, Romania.
| | - Stefania Iordache
- Valahia University of Targoviste, Aleea Sinaia no. 13, RO-130004, Targoviste, Romania
| | - Hai-Ying Liu
- Norwegian Institute for Air Research - NILU, Instituttveien 18, PO Box 100, NO-2027, Kjeller, Norway
| | - Trond Bøhler
- Norwegian Institute for Air Research - NILU, Instituttveien 18, PO Box 100, NO-2027, Kjeller, Norway
| | - Alin Pohoata
- Valahia University of Targoviste, Aleea Sinaia no. 13, RO-130004, Targoviste, Romania
| | - Cristiana Radulescu
- Valahia University of Targoviste, Aleea Sinaia no. 13, RO-130004, Targoviste, Romania
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Neuzillet Y, Raynaud J, Pichon A, Ghoneim T, Lebret T, Radulescu C, Molinie V, Botto H. Effets opposés de l’hypogonadisme sur les caractéristiques histologiques et le devenir des cancers de la prostate localisés traités par prostatectomie radicale. Prog Urol 2015; 25:741. [DOI: 10.1016/j.purol.2015.08.052] [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: 10/22/2022]
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Neuzillet Y, Jarry L, Radulescu C, Rouanne M, Lebret T. Valeur pronostique de la présence d’emboles vasculaires tumoraux sur la pièce de cystectomie totale. Prog Urol 2015; 25:770-1. [DOI: 10.1016/j.purol.2015.08.112] [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: 10/22/2022]
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Pichon A, Neuzillet Y, Botto H, Raynaud JP, Radulescu C, Molinié V, Herve JM, Lebret T. Preoperative low serum testosterone is associated with high-grade prostate cancer and an increased Gleason score upgrading. Prostate Cancer Prostatic Dis 2015; 18:382-7. [PMID: 26439747 DOI: 10.1038/pcan.2015.44] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 08/06/2015] [Accepted: 08/25/2015] [Indexed: 01/06/2023]
Abstract
BACKGROUND To compare histological feature of prostate cancer (PCa) according androgenic status in patients who underwent radical prostatectomy (RP). METHODS Between March 2007 and September 2013, we prospectively analysed 937 patients who were referred to our centre for RP. Clinical, pathological and biological data have been prospectively collected. Preoperative total testosterone (TT) and bioavailable testosterone (BT) serum determinations were carried out. The threshold for low serum testosterone was set at TT<3 ng/ml. Preoperative PSA value was registered. Gleason score (GS) and predominant Gleason pattern were determined in prostate biopsies and in prostate tissue specimens, crosschecked by two uro-pathologists. RESULTS Nine hundred and thirty-seven consecutive patients were included. In all, 14.9% patients had low TT in the population. An exact match between biopsy and prostate specimens in GS grading was observed for 50.6% patients (n=474). Also, 40.9% of all patients were upgraded (n=383): 45.3% (n=63) in low serum testosterone patients and 40.1% (n=320) in normal serum testosterone patients. For prostate specimens, the proportion of patients with predominant Gleason pattern 4 was higher in patients with low TT compared with normal TT (41.7% vs 29.1%, P=0.0029). In all, 20.1% were upgraded from predominant Gleason pattern 3 on biopsies specimen to predominant Gleason 4 pattern on the prostate specimen in patients with low TT, whereas 11.6% were upgraded for normal TT patients (P=0.002). CONCLUSIONS Low serum testosterone is an independent risk factor for predominant Gleason pattern 4 on prostate specimen after RP and for upgrading from low- to high-grade cancer between prostate needle biopsies and RP specimen. This observation should be taken into account in localised PCa management, especially for active surveillance or when a nerve-sparing approach is considered.
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Affiliation(s)
- A Pichon
- Department of Urology, Foch Hospital, Suresnes, France
| | - Y Neuzillet
- Department of Urology, Foch Hospital, Suresnes, France
| | - H Botto
- Department of Urology, Foch Hospital, Suresnes, France
| | - J-P Raynaud
- Department of Physiology, University Pierre and Marie Curie, Paris, France
| | - C Radulescu
- Department of Pathology, Foch Hospital, Suresnes, France
| | - V Molinié
- Department of Pathology, CHU de Fort-de-France, Fort-de-France, France
| | - J-M Herve
- Department of Urology, Foch Hospital, Suresnes, France
| | - T Lebret
- Department of Urology, Foch Hospital, Suresnes, France
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Rouanne M, Alhammadi A, Vilain D, Radulescu C, Lebret T. Value of positron emission tomography in diagnosing synchronous penile metastasis from urothelial bladder cancer. World J Surg Oncol 2015; 13:276. [PMID: 26376852 PMCID: PMC4574003 DOI: 10.1186/s12957-015-0696-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 04/30/2015] [Accepted: 09/08/2015] [Indexed: 12/03/2022] Open
Abstract
Metastases to the penis are extremely rare events. Most frequently, penile metastases come from the urogenital system (bladder, prostate) or the rectum-sigmoid colon. Usually painful, penile lesions may be asymptomatic, making diagnosis more challenging. Hence, we report the adding value of 18F-fludeoxyglucose–positron emission tomography/computed tomography (18F-FDG PET/CT) in the detection of penile metastases originating from urothelial carcinoma of the bladder. Arguably, penile metastases must be considered as an advanced disease requiring essentially palliative care. Therefore, accurate staging of clinically localized muscle-invasive bladder cancer is crucial to avoid useless curative intent radical surgery.
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Affiliation(s)
- M Rouanne
- Department of Urology, Hôpital Foch, 40, rue Worth, 92150, Suresnes, France. .,UFR des Sciences de la Santé, Versailles-Saint-Quentin-en-Yvelines University, Versailles, France.
| | - A Alhammadi
- Department of Urology, Hôpital Foch, 40, rue Worth, 92150, Suresnes, France
| | - D Vilain
- Department of Nuclear Medicine, Hôpital Foch, Suresnes, France
| | - C Radulescu
- Department of Pathology, Hôpital Foch, Suresnes, France
| | - T Lebret
- Department of Urology, Hôpital Foch, 40, rue Worth, 92150, Suresnes, France.,UFR des Sciences de la Santé, Versailles-Saint-Quentin-en-Yvelines University, Versailles, France
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Rouanne M, Girma A, Neuzillet Y, Vilain D, Radulescu C, Letang N, Yonneau L, Hervé JM, Botto H, Le Stanc E, Lebret T. Potential impact of 18F-FDG PET/CT on patients selection for neoadjuvant chemotherapy before radical cystectomy. Eur J Surg Oncol 2014; 40:1724-30. [DOI: 10.1016/j.ejso.2014.08.479] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 08/21/2014] [Accepted: 08/27/2014] [Indexed: 10/24/2022] Open
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Mejean A, Lebret T, Verkarre V, Radulescu C, Timsit M, Neuzillet Y, Koscielny S, Hemmerlé I, Guilmy S, Escudier B. Validation d’une signature de 16 gènes pour prédire la récidive après néphrectomie pour carcinome à cellules claires stade I–III. Prog Urol 2014; 24:833. [DOI: 10.1016/j.purol.2014.08.110] [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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45
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Escudier B, Koscielny S, Lopatin M, Svedman C, Verkarre V, Radulescu C, Neuzillet Y, Timsit M, Hemmerlé I, Tsiatis T, Bonham M, Knezevic D, Lebret T, Goddard A, Mejean A. Genomic Renal Score for Assessing Risk of Recurrence in Renal Cancer: Subgroup Analyses from the Validation Study. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu337.7] [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: 11/14/2022] Open
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Allory Y, Salomon L, Charles-Nelson A, Paoletti M, Shar L, Abbou C, Radulescu C, Bastuji-Garin S. Analyse de la concordance du stade tumoral, du score de Gleason et des limites chirurgicales après revue prospective des 590 pièces de prostatectomie de l’étude Propenlap. Prog Urol 2013. [DOI: 10.1016/j.purol.2013.08.011] [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: 10/26/2022]
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Allory Y, Bastuji-Garin S, Charles-Nelson A, Paoletti M, Shar L, Abbou C, Radulescu C, Salomon L. Caractéristiques histopathologiques après relecture systématique d’une série multicentrique et prospective de 590 pièces de prostatectomie radicale (2007–2011). Prog Urol 2013. [DOI: 10.1016/j.purol.2013.08.017] [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: 11/27/2022]
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Darabont RO, Corlan AD, Calin S, Mincu RI, Magda SL, Radulescu C, Vinereanu D. Effects of myocardial bridge on coronary atherosclerosis. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3123] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Douard A, de la Taille A, Yiou R, Allory Y, Radulescu C, Vordos D, Hoznek A, Abbou CC, Salomon L. [Prognostic impact of tumors localized at the prostatic apex]. Prog Urol 2013; 23:405-9. [PMID: 23628099 DOI: 10.1016/j.purol.2013.02.003] [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: 02/10/2012] [Revised: 01/31/2013] [Accepted: 02/07/2013] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The apex is a particular region of the prostate in its surgical dissection and pathological analysis. We sought to evaluate the prognostic value of the apical localization of prostate tumors. METHOD From 1988 to 2010, data pre- (age, clinical stage, preoperative PSA, biopsy Gleason score) and postoperative (prostate weight, pathologic stage TNM 2010, Gleason score, margin status) of 2765 total prostatectomies were collected prospectively. These data were compared according to existence or absence of tumor at the apex. The prognostic impact of tumor at the apex on biochemical recurrence-free survival (PSA>0.2 ng/mL) has been studied in univariate and multivariate models. RESULTS One thousand eight hundred seventeen tumors had a location at the apex (65.7%). In univariate analysis, there was a significant difference in the clinical stage, the biopsy and pathological Gleason score, the result of curage, the pathological stage and the margin status between apical tumors and others. With a mean decline of 34.6 months, 502 patients had a biochemical recurrence (18.1%). Disease-free survival at 10 years was 60.7% for tumor at the apex versus 65.9% in other cases. The location at the apex was significantly associated with biochemical recurrence on univariate analysis (P=0.01). After adjustment for clinical and pathological stage, PSA level, Gleason score and surgical margins, the apex was not anymore a pejorative independent predictor (P=0.0087). CONCLUSION The existence of tumor in the prostatic apex was associated with more aggressive tumoral criteria and was an independent and pejorative predictor of biochemical recurrence-free survival at 10 years in univariate analysis. The apical localization could be an additional argument in the decision of adjuvant therapy after prostatectomy.
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Affiliation(s)
- A Douard
- Service d'urologie, centre hospitalier de la Côte Basque, 64100 Bayonne, France.
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State G, Popescu IV, Radulescu C, Macris C, Stihi C, Gheboianu A, Dulama I, Niţescu O. Comparative studies of metal air pollution by atomic spectrometry techniques and biomonitoring with moss and lichens. Bull Environ Contam Toxicol 2012; 89:580-586. [PMID: 22760846 DOI: 10.1007/s00128-012-0713-9] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Received: 09/04/2011] [Accepted: 06/19/2012] [Indexed: 06/01/2023]
Abstract
Our study was dedicated to the analysis of air pollution level with metals in Dambovita County, Romania; maps of the concentration distributions for air pollutants were drawn; statistical analysis includes calculation of the background concentrations and the contamination factors. The highest values of the contamination factor CF is 63.1 ± 6.63 for mosses samples and 33.12 ± 3.96 for lichens and it indicates extreme contaminations in the surroundings of steel works and an electric plant. The comparison of the distribution maps for Cr, Cu, Fe, Ni, Pb and Zn concentrations enables the identification of the pollution sources, the limits of areas with very high levels of pollution, the comparison of the concentration gradients in some areas and the influence of woodlands on the spread of pollutants through the air.
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Affiliation(s)
- Gabriel State
- National College Ienachita Vacarescu, Calea Domneasca 235, Targoviste, Romania.
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