M. Arvanitidou - Academia.edu (original) (raw)
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Papers by M. Arvanitidou
International Journal of Food Sciences and Nutrition, 2010
International Journal of Food Sciences and Nutrition, 2010
European Journal of Public Health
Water Science & Technology
In this study ten laboratories in Greece compared the performance of reference method TTC Tergito... more In this study ten laboratories in Greece compared the performance of reference method TTC Tergitol 7 Agar (with the additional test of beta-glucuronidase production) with five alternative methods, to detect E. coli in water, in line with European Water Directive recommendations. The samples were prepared by spiking drinking water with sewage effluent following a standard protocol. Chlorinated and non-chlorinated samples were used. The statistical analysis was based on the mean relative difference of confirmed counts and was performed in line with ISO 17994. The results showed that in total, three of the alternative methods (Chromocult Coliform agar, Membrane Lauryl Sulfate agar and Trypton Bilex-glucuronidase medium) were not different from TTC Tergitol 7 agar (TTC Tergitol 7 agar vs Chromocult Coliform agar, 294 samples, mean RD% 5.55; vs MLSA, 302 samples, mean RD% 1; vs TBX, 297 samples, mean RD% -2.78). The other two alternative methods (Membrane Faecal coliform medium and Colil...
Hippokratia, 2010
Hyperhomocysteimemia is a cardiovascular risk factor even among children. Supplementation of oral... more Hyperhomocysteimemia is a cardiovascular risk factor even among children. Supplementation of oral folic acid may reduce homocysteine levels to normal. However, data is limited at this point for healthy children and adolescents. Five hundre and twenty four children participated in the study; Twenty six of them were found to be hyperho mocysteinemic(>95(th) percentile for age). Twenty of them received 5 mg of folic acid twice per week for two consecutive months while the other six received a diet rich in dietary folate. Serum homocysteine levels were statistically significantly decreased from 13.1 (10-24.2 micromol/L ) to 7.7 (4.9- 15.2 micromol/L), p<0.001. Serum folate levels were significantly rose from 4.3 (3-20 ng/mL) to 16.8 (7-20 ng/mL), p<0.001. On the contrary, no important changes were observed in the above parameters in children to whom a diet rich in folic acid was recommended. Homocysteine levels were found to be positively associated with age (r=0.314, p<0.00...
2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2008
Nutrition in Clinical Practice, 2010
Journal of Medical Microbiology, 1999
International Journal of Food Sciences and Nutrition, 2010
International Journal of Food Sciences and Nutrition, 2010
European Journal of Public Health
Water Science & Technology
In this study ten laboratories in Greece compared the performance of reference method TTC Tergito... more In this study ten laboratories in Greece compared the performance of reference method TTC Tergitol 7 Agar (with the additional test of beta-glucuronidase production) with five alternative methods, to detect E. coli in water, in line with European Water Directive recommendations. The samples were prepared by spiking drinking water with sewage effluent following a standard protocol. Chlorinated and non-chlorinated samples were used. The statistical analysis was based on the mean relative difference of confirmed counts and was performed in line with ISO 17994. The results showed that in total, three of the alternative methods (Chromocult Coliform agar, Membrane Lauryl Sulfate agar and Trypton Bilex-glucuronidase medium) were not different from TTC Tergitol 7 agar (TTC Tergitol 7 agar vs Chromocult Coliform agar, 294 samples, mean RD% 5.55; vs MLSA, 302 samples, mean RD% 1; vs TBX, 297 samples, mean RD% -2.78). The other two alternative methods (Membrane Faecal coliform medium and Colil...
Hippokratia, 2010
Hyperhomocysteimemia is a cardiovascular risk factor even among children. Supplementation of oral... more Hyperhomocysteimemia is a cardiovascular risk factor even among children. Supplementation of oral folic acid may reduce homocysteine levels to normal. However, data is limited at this point for healthy children and adolescents. Five hundre and twenty four children participated in the study; Twenty six of them were found to be hyperho mocysteinemic(>95(th) percentile for age). Twenty of them received 5 mg of folic acid twice per week for two consecutive months while the other six received a diet rich in dietary folate. Serum homocysteine levels were statistically significantly decreased from 13.1 (10-24.2 micromol/L ) to 7.7 (4.9- 15.2 micromol/L), p<0.001. Serum folate levels were significantly rose from 4.3 (3-20 ng/mL) to 16.8 (7-20 ng/mL), p<0.001. On the contrary, no important changes were observed in the above parameters in children to whom a diet rich in folic acid was recommended. Homocysteine levels were found to be positively associated with age (r=0.314, p<0.00...
Nutrition in Clinical Practice, 2010
International Journal of Food Sciences and Nutrition, 2010
International Journal of Food Sciences and Nutrition, 2010
European Journal of Public Health
Water Science & Technology
In this study ten laboratories in Greece compared the performance of reference method TTC Tergito... more In this study ten laboratories in Greece compared the performance of reference method TTC Tergitol 7 Agar (with the additional test of beta-glucuronidase production) with five alternative methods, to detect E. coli in water, in line with European Water Directive recommendations. The samples were prepared by spiking drinking water with sewage effluent following a standard protocol. Chlorinated and non-chlorinated samples were used. The statistical analysis was based on the mean relative difference of confirmed counts and was performed in line with ISO 17994. The results showed that in total, three of the alternative methods (Chromocult Coliform agar, Membrane Lauryl Sulfate agar and Trypton Bilex-glucuronidase medium) were not different from TTC Tergitol 7 agar (TTC Tergitol 7 agar vs Chromocult Coliform agar, 294 samples, mean RD% 5.55; vs MLSA, 302 samples, mean RD% 1; vs TBX, 297 samples, mean RD% -2.78). The other two alternative methods (Membrane Faecal coliform medium and Colil...
Hippokratia, 2010
Hyperhomocysteimemia is a cardiovascular risk factor even among children. Supplementation of oral... more Hyperhomocysteimemia is a cardiovascular risk factor even among children. Supplementation of oral folic acid may reduce homocysteine levels to normal. However, data is limited at this point for healthy children and adolescents. Five hundre and twenty four children participated in the study; Twenty six of them were found to be hyperho mocysteinemic(>95(th) percentile for age). Twenty of them received 5 mg of folic acid twice per week for two consecutive months while the other six received a diet rich in dietary folate. Serum homocysteine levels were statistically significantly decreased from 13.1 (10-24.2 micromol/L ) to 7.7 (4.9- 15.2 micromol/L), p<0.001. Serum folate levels were significantly rose from 4.3 (3-20 ng/mL) to 16.8 (7-20 ng/mL), p<0.001. On the contrary, no important changes were observed in the above parameters in children to whom a diet rich in folic acid was recommended. Homocysteine levels were found to be positively associated with age (r=0.314, p<0.00...
2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2008
Nutrition in Clinical Practice, 2010
Journal of Medical Microbiology, 1999
International Journal of Food Sciences and Nutrition, 2010
International Journal of Food Sciences and Nutrition, 2010
European Journal of Public Health
Water Science & Technology
In this study ten laboratories in Greece compared the performance of reference method TTC Tergito... more In this study ten laboratories in Greece compared the performance of reference method TTC Tergitol 7 Agar (with the additional test of beta-glucuronidase production) with five alternative methods, to detect E. coli in water, in line with European Water Directive recommendations. The samples were prepared by spiking drinking water with sewage effluent following a standard protocol. Chlorinated and non-chlorinated samples were used. The statistical analysis was based on the mean relative difference of confirmed counts and was performed in line with ISO 17994. The results showed that in total, three of the alternative methods (Chromocult Coliform agar, Membrane Lauryl Sulfate agar and Trypton Bilex-glucuronidase medium) were not different from TTC Tergitol 7 agar (TTC Tergitol 7 agar vs Chromocult Coliform agar, 294 samples, mean RD% 5.55; vs MLSA, 302 samples, mean RD% 1; vs TBX, 297 samples, mean RD% -2.78). The other two alternative methods (Membrane Faecal coliform medium and Colil...
Hippokratia, 2010
Hyperhomocysteimemia is a cardiovascular risk factor even among children. Supplementation of oral... more Hyperhomocysteimemia is a cardiovascular risk factor even among children. Supplementation of oral folic acid may reduce homocysteine levels to normal. However, data is limited at this point for healthy children and adolescents. Five hundre and twenty four children participated in the study; Twenty six of them were found to be hyperho mocysteinemic(>95(th) percentile for age). Twenty of them received 5 mg of folic acid twice per week for two consecutive months while the other six received a diet rich in dietary folate. Serum homocysteine levels were statistically significantly decreased from 13.1 (10-24.2 micromol/L ) to 7.7 (4.9- 15.2 micromol/L), p<0.001. Serum folate levels were significantly rose from 4.3 (3-20 ng/mL) to 16.8 (7-20 ng/mL), p<0.001. On the contrary, no important changes were observed in the above parameters in children to whom a diet rich in folic acid was recommended. Homocysteine levels were found to be positively associated with age (r=0.314, p<0.00...
Nutrition in Clinical Practice, 2010
The risk of illness or infection associated with recreational water environments is mainly associ... more The risk of illness or infection associated with recreational water environments is mainly associated with faecal water contamination. Many of the outbreaks related to pools and similar environments have occurred because of not applied or inadequate disinfection. Non-faecal human shedding into the pool water or surrounding area is also a potential source of pathogenic organisms such as Pseudomonas aeruginosa. The aim of the current study is to describe and evaluate the bacteriological examination of 2844 swimming pool and jacuzzi/spa water samples in Northern Greece during 2011-2016 period. Bacteriological examination of recreational water includes heterotrophic bacteria, total coliforms and Escherichia coli according to Greek Hygienic Regulation and the European Directive 2006/7/EC. P. aeruginosa is a significant agent of opportunistic infection in aquatic environments and was also examined in the aforementioned samples. We aimed to indicate the importance of including P. aeruginosa as a recreational water quality indicator in the revised version of Greek Hygienic Regulation. Data analysis was performed using statistical package SPSS 22.0. The association between categorical variables was assessed with the chi-square test or the Fisher’s exact test, whenever more appropriate, at 5% significance level. The quality of all types of swimming pools was evaluated as excellent as less than 5% was found not to meet the regulations throughout 2011-2016 period. In the small percentage of samples that did not meet the regulations, medians of the indicators were slightly higher than limits. Considering the presence and concentration of Pseudomonas aeruginosa, the number of samples that would not meet the standards would differ significantly. P. aeruginosa was detected in a larger amount of samples than E.coli which indicates that P.aeruginosa should be assessed as an important factor. At last, οver time the frequency of isolation of P. aeruginosa was remarkably reduced perhaps because of staff vigilance and better compliance with the maintenance instructions concerning swimming pools. In conclusion, we believe that P. aeruginosa affects significantly the compliance of samples to the regulations and should be included in the revised version of Greek Hygienic Regulation.