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  1. AU="Rizos, Ch"
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  1. Article: Alcohol consumption and prostate cancer: a mini review.

    Rizos, Ch / Papassava, M / Golias, Ch / Charalabopoulos, K

    Experimental oncology

    2010  Volume 32, Issue 2, Page(s) 66–70

    Abstract: Prostate cancer has become a major public health problem worldwide although the etiology of prostate cancer remains largely unknown. Dietary factors, dietary supplements, and physical activity might be important in the prevention of the disease. In the ... ...

    Abstract Prostate cancer has become a major public health problem worldwide although the etiology of prostate cancer remains largely unknown. Dietary factors, dietary supplements, and physical activity might be important in the prevention of the disease. In the majority of studies published, it was observed that high consumption of meat, alcohol and dairy products has been linked to a greater risk. Specifically, alcohol use, and particularly heavy use, may cause cancers of liver, esophagus, larynx, pharynx and oral cavity, with risks for the aero-digestive cancers. Moderate use among women has been related with increases in breast cancer. Alcohol consumption is a modifiable lifestyle factor that may affect prostate cancer risk. Alcohol alters the hormonal environment and in parallel, containing chemical substances such as flavonoids (red wine), may alter tumor cell growth. In this mini review, the relation between alcohol consumption and prostate cancer risk is analyzed.
    MeSH term(s) Alcohol Drinking/adverse effects ; Humans ; Male ; Prostatic Neoplasms/chemically induced ; Prostatic Neoplasms/epidemiology ; Risk Factors
    Language English
    Publishing date 2010-07
    Publishing country Ukraine
    Document type Journal Article ; Review
    ZDB-ID 2176927-8
    ISSN 1812-9269 ; 0204-3564
    ISSN 1812-9269 ; 0204-3564
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 2355: Show issues Location:
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  2. Article: Residues of cypermethrin in field-treated grapes and raisins produced after various treatments.

    Lentza-Rizos, Ch / Kokkinaki, K

    Food additives and contaminants

    2002  Volume 19, Issue 12, Page(s) 1162–1168

    Abstract: Residues of the synthetic pyrethroid insecticide cypermethrin in fresh grapes of cv. Thomson Seedless and in raisins were studied. The commercial formulation Cymbush10% EC was applied according to the label onto the typical seedless variety and on a seed- ...

    Abstract Residues of the synthetic pyrethroid insecticide cypermethrin in fresh grapes of cv. Thomson Seedless and in raisins were studied. The commercial formulation Cymbush10% EC was applied according to the label onto the typical seedless variety and on a seed-producing clone. Samples were collected at time zero and at 15 or 21 days post-application. The raisins were produced either by submersion for 3 min in an aqueous solution of 3% potassium carbonate and 1% ethyl oleate, and dried for 15 days under direct sunlight or were dried without chemical processing. A gas chromatographic method was used for the analysis of residues. The residues in the grapes at the recommended preharvest interval (15 days) ranged from 0.23 to 0.41 mg kg(-1), whereas those in raisins ranged from 0.25 to 0.46 mg kg(-1).
    MeSH term(s) Food Analysis/methods ; Food Contamination/analysis ; Food Handling/methods ; Insecticides/analysis ; Pesticide Residues/analysis ; Pyrethrins/analysis ; Vitis/chemistry ; Vitis/growth & development
    Chemical Substances Insecticides ; Pesticide Residues ; Pyrethrins ; cypermethrin (1TR49121NP)
    Language English
    Publishing date 2002-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 49417-3
    ISSN 0265-203X
    ISSN 0265-203X
    DOI 10.1080/0265203021000012385
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  3. Article: Determination of pesticide residues in wine using gas chromatography with nitrogen-phosphorus and electron capture detection.

    Avramides, E J / Lentza-Rizos, Ch / Mojasevic, M

    Food additives and contaminants

    2003  Volume 20, Issue 8, Page(s) 699–706

    Abstract: A multiresidue method employing an extraction step with ethyl acetate followed by clean-up using an Isolute silica column and determination using gas chromatography with nitrogen-phosphorus and electron capture detection was validated for a wide range of ...

    Abstract A multiresidue method employing an extraction step with ethyl acetate followed by clean-up using an Isolute silica column and determination using gas chromatography with nitrogen-phosphorus and electron capture detection was validated for a wide range of pesticide residues in white and red wine. Recoveries between 70 and 110% and relative standard deviations below 20% were obtained for nearly all target analytes using matrix-matched standards. Limits of detection based on three times the signal-to-noise ratio were in the range 0.002-0.01 mg l(-1) for most compounds. The chromatograms were generally free of interference peaks resulting from co-extractives, although a few were noted for red wine with nitrogen-phosphorus detection. Ninety-two wine samples collected in Greece and Yugoslavia during 2 consecutive years were screened for residues of 84 pesticides, 71% of which were registered for use on vines in one or both countries. A total of 20% of the samples were obtained from field trials, and of these, one Greek wine contained iprodione 0.3 mg l(-1) and six Yugoslavian wines, for which vinclozolin had been added to the must as part of a different study, contained residues of this pesticide. No residues were detected in any of the other samples.
    MeSH term(s) Chromatography, Gas/methods ; Food Analysis/methods ; Food Contamination/analysis ; Humans ; Nitrogen ; Pesticide Residues/analysis ; Phosphorus ; Reproducibility of Results ; Wine/analysis
    Chemical Substances Pesticide Residues ; Phosphorus (27YLU75U4W) ; Nitrogen (N762921K75)
    Language English
    Publishing date 2003-08
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Validation Studies
    ZDB-ID 49417-3
    ISSN 0265-203X
    ISSN 0265-203X
    DOI 10.1080/0265203031000109459
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  4. Article ; Online: Insecticides authorized for use on olive trees and the relationship between their registration and residues in olive oil

    Lentza-Rizos, Ch.

    Grasas y Aceites, Vol 47, Iss 6, Pp 392-

    1996  Volume 396

    Abstract: In order to eliminate losses due to insect attack, several insecticides are used on olive trees. Their residues in olive oil constitute an important parameter of its quality and must be monitored regularly and kept as low possible in order to ensure ... ...

    Abstract In order to eliminate losses due to insect attack, several insecticides are used on olive trees. Their residues in olive oil constitute an important parameter of its quality and must be monitored regularly and kept as low possible in order to ensure consumer protection. In this paper the insecticides authorized for use on olive trees are listed and their ADIs and Codex Alimentarius MRLs reported. The existing registrations are discussed from the point of view of their residues in oil. Diversos insecticidas son usados para eliminar las pérdidas debidas al ataque de insectos en olivos. Sus residuos en el aceite de oliva constituyen un parámetro importante de su calidad y deben ser controlados con regularidad y mantenidos tan bajos como sea posible en orden a asegurar la protección del consumidor. En este artículo se incluyen los distintos insecticidas autorizados para su uso en olivos así como los valores de ingesta diaria aceptable para el hombre y los límites máximos autorizados de los mismos. Los registros existentes se discuten desde el punto de vista de sus residuos en el aceite.
    Keywords Insecticide authorized ; Olive oil ; Olive tree ; Residue ; Aceite de oliva ; Insecticida autorizado ; Olivo ; Residuo ; Nutrition. Foods and food supply ; TX341-641 ; Home economics ; TX1-1110 ; Technology ; T ; DOAJ:Nutrition and Food Sciences ; DOAJ:Agriculture and Food Sciences
    Language English
    Publishing date 1996-12-01T00:00:00Z
    Publisher Consejo Superior de Investigaciones Científicas
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: Low-temperature clean-up method for the determination of organophosphorus insecticides in olive oil.

    Lentza-Rizos, C H / Avramides, E J / Cherasco, F

    Journal of chromatography. A

    2001  Volume 912, Issue 1, Page(s) 135–142

    Abstract: A simple, extremely low-cost method using low-temperature lipid precipitation has been developed for the rapid analysis of virgin olive oil for organophosphorus insecticides and triazine herbicides commonly used in olive groves. The method gives good ... ...

    Abstract A simple, extremely low-cost method using low-temperature lipid precipitation has been developed for the rapid analysis of virgin olive oil for organophosphorus insecticides and triazine herbicides commonly used in olive groves. The method gives good clean-up for GC analysis with nitrogen-phosphorus detection and recoveries between 77 and 104%, with RSD values of 7-16%. Matrix enhancement was observed for some pesticides and metabolites.
    MeSH term(s) Chromatography, Gas/methods ; Herbicides/analysis ; Insecticides/analysis ; Olive Oil ; Organophosphorus Compounds ; Plant Oils/chemistry ; Reproducibility of Results ; Sensitivity and Specificity ; Temperature ; Triazines
    Chemical Substances Herbicides ; Insecticides ; Olive Oil ; Organophosphorus Compounds ; Plant Oils ; Triazines
    Language English
    Publishing date 2001-03-30
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1171488-8
    ISSN 1873-3778 ; 0021-9673
    ISSN (online) 1873-3778
    ISSN 0021-9673
    DOI 10.1016/s0021-9673(01)00527-1
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  6. Article: Residues of aldicarb in oranges: a unit-to-unit variability study.

    Lentza-Rizos, C H / Tsioumplekou, M

    Food additives and contaminants

    2001  Volume 18, Issue 10, Page(s) 886–897

    Abstract: Residues of aldicarb and its sulphoxide and sulphone oxidative metabolites in individual Navelino orange trees were determined at several time intervals after soil application of TEMIK 10G at 200 g formulated material per tree. Analysis was by HPLC with ... ...

    Abstract Residues of aldicarb and its sulphoxide and sulphone oxidative metabolites in individual Navelino orange trees were determined at several time intervals after soil application of TEMIK 10G at 200 g formulated material per tree. Analysis was by HPLC with postcolumn derivatization giving average recoveries of 98% for aldicarb (RSD 6%), 34% for aldicarb sulphoxide (RSD 5%) and 77% for aldicarb sulphone (RSD 5%). Lowest calibrated levels (LCLs) were 0.02 mg/kg for aldicarb and aldicarb sulphone and 0.04 mg/kg for aldicarb sulphoxide. At the recommended preharvest interval (PHI) of 120 days no detectable residues of any compound, including the parent compound, were found in and of the samples analysed. In mature fruits (PHI of 88 days) detectable residues at the LCL for aldicarb sulphoxide and 0.03 or 0.04 mg/kg for aldicarb sulphone were found in only three of the 18 samples analYsed. In immature fruits detectable residues of aldicarb sulphoxide at concentrations ranging between 0.04 (LCL) and 0.51 mg/kg were detected in 70 out of 88 samples analysed, while residues of aldicarb sulphone at concentrations 0.02 (LCL) to 0.8 mg/kg were detected in 73 out of 88 samples. Indicative variability factors for sulphoxide and sulphone were estimated for immature fruits.
    MeSH term(s) Aldicarb/analogs & derivatives ; Aldicarb/analysis ; Chromatography, High Pressure Liquid/methods ; Citrus/chemistry ; Humans ; Insecticides/analysis ; Pesticide Residues/analysis ; Reproducibility of Results
    Chemical Substances Insecticides ; Pesticide Residues ; Aldicarb (8V071SH05P)
    Language English
    Publishing date 2001-10
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 49417-3
    ISSN 0265-203X
    ISSN 0265-203X
    DOI 10.1080/02652030120894
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Determination of pesticide residues in wine using gas chromatography with nitrogen-phosphorus and electron capture detection

    Avramides, E.J. / Lentza-Rizos, Ch. / Mojasevic, M.

    Food additives and contaminants : Analysis, surveillance, evaluation Control

    Volume v. 20,, Issue no. 8

    Abstract: A multiresidue method employing an extraction step with ethyl acetate followed by clean-up using an Isolute silica column and determination using gas chromatography with nitrogen-phosphorus and electron capture detection was validated for a wide range of ...

    Abstract A multiresidue method employing an extraction step with ethyl acetate followed by clean-up using an Isolute silica column and determination using gas chromatography with nitrogen-phosphorus and electron capture detection was validated for a wide range of pesticide residues in white and red wine. Recoveries between 70 and 110% and relative standard deviations below 20% were obtained for nearly all target analytes using matrix-matched standards. Limits of detection based on three times the signal-to-noise ratio were in the range 0.002–0.01 mg l−1 for most compounds. The chromatograms were generally free of interference peaks resulting from co-extractives, although a few were noted for red wine with nitrogen-phosphorus detection. Ninety-two wine samples collected in Greece and Yugoslavia during 2 consecutive years were screened for residues of 84 pesticides, 71% of which were registered for use on vines in one or both countries. A total of 20% of the samples were obtained from field trials, and of these, one Greek wine contained iprodione 0.3 mg l−1 and six Yugoslavian wines, for which vinclozolin had been added to the must as part of a different study, contained residues of this pesticide. No residues were detected in any of the other samples.
    Keywords monitoring ; vinclozolin ; detection limit ; pesticide residues ; ethyl acetate ; field experimentation ; iprodione ; multiresidue analysis ; gas chromatography ; vines ; silica ; food additives ; red wines
    Language English
    Document type Article
    ISSN 1944-0049
    Database AGRIS - International Information System for the Agricultural Sciences and Technology

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