Manolis Tzatzarakis

Prof. Manolis Tzatzarakis


Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2020 in Toxicology Reports
Verified
Journal Article
Open access
IKIoanna Katsikantami
Ioanna Katsikantami
MTManolis Tzatzarakis
Manolis Tzatzarakis
AAAthanasios K. Alegakis
Athanasios K. Alegakis
VKVasiliki Karzi
Vasiliki Karzi
EHEleftheria Hatzidaki
Eleftheria Hatzidaki
Aristidis TsatsakisAristidis Tsatsakis
Aristidis Tsatsakis
Phthalates are used in industry as plasticizers or additives in everyday products and they have been considered as endocrine disrupting chemicals. Maternal exposure during pregnancy has been associated with neonatal exposure, preterm birth and impacts in the reproductive and respiratory systems. The aim of this study is to determine six phthalate metabolites (mono isobutyl phthalate, miBP, mono n-butyl phthalate, mnBP, mono benzyl phthalate, mBzP, mono ethylhexyl phthalate, mEHP, mono 2-ethyl-5-hydroxyhexyl phthalate, mEHHP, mono 2-ethyl-5-oxohexyl-phthalate, mEOHP) in amniotic fluid and urine from 100 pregnant women. Participants answered questionnaires for the use of plastics and cosmetics, dietary habits, health effects, pregnancy problems, health and infant development. Positive amniotic fluid samples ranged from 1% to 21% and urine from 27% to 54%. The median levels for amniotic fluid were 2.3 μg/L - 10.7 μg/L and for urine 4.9 μg/L - 46.7 μg/L. The major results include significant correlations between urinary phthalates indicating their common sources of exposure, the frequent use of deodorant was significantly associated with higher urinary miBP (p = 0.050) and mnBP (p = 0.028) and a weak inverse association was found for the use of make-up products with mBzP (p = 0.053). The frequent use of plastic food containers was significantly associated with urinary mEHP (p = 0.026), and a positive trend was noticed for mEHP in amniotic fluid (p = 0.093). An association although weak was found between urinary mEHP and lower birth length (rs = 0.396, p = 0.062). No other associations were found for infant health problems or development. The daily intake of the total phthalates was calculated 5.4 μg/kg body weight/day which corresponds to hazard index 0.10 and exposure follows the declining trend that has been observed the last decades.

1 April 2020 in Science of The Total Environment
Verified
Journal Article
Closed access
IKIoanna Katsikantami
Ioanna Katsikantami
MTManolis Tzatzarakis
Manolis Tzatzarakis
VKVasiliki Karzi
Vasiliki Karzi
ASAthina Stavroulaki
Athina Stavroulaki
PXPelagia Xezonaki
Pelagia Xezonaki
Aristidis TsatsakisAristidis Tsatsakis
Aristidis Tsatsakis

6 August 2022 in Toxics
Verified
Journal Article
Open access
PDF file
ASATHINA STAVROULAKI
ATHINA STAVROULAKI
MTManolis Tzatzarakis
Manolis Tzatzarakis
VKVasiliki Karzi
Vasiliki Karzi
IKIoanna Katsikantami
Ioanna Katsikantami
ERElisavet Renieri
Elisavet Renieri
Aristidis TsatsakisAristidis Tsatsakis
Aristidis Tsatsakis
The extensive use of antibiotics in livestock farming poses increased concerns for human health as residues of these substances are present in edible tissues. The aim of this study was the determination of the levels of four groups of antibiotics (sulfonamides—SAs, tetracyclines—TCs, streptomycines—STr and quinolones—QNLs) in meat samples (muscles, livers and kidneys from beef, chicken and pork) and the estimation of the dietary exposure to antibiotics from meat consumption and the potential hazard for human health. Fifty-four samples of raw meat were randomly collected in 2018 from the Cretan market, Greece and analyzed both with an enzyme-linked immunosorbent assay (ELISA) and liquid chromatography–mass spectrometry (LC–MS). According to the results derived from the ELISA method, only 2% of the meat samples were free from antibiotics, 2% were detected with 4 antibiotics and the great majority of the samples (87%) were detected with 2 to 3 antibiotics. SAs presented the highest detection frequencies for all samples whereas TCs were not detected in any bovine sample. The highest median concentration was detected for STr in bovine muscles (182.10 μg/kg) followed by QNLs (93.36 μg/kg) in pork kidneys whereas the chicken samples had higher burdens of QNLs compared to the other meat samples. LC–MS analysis showed that oxytetracycline (OTC) was the most common antibiotic in all samples. The highest median concentration of all antibiotics was detected for doxycycline (DOX) (181.73 μg/kg in pork kidney) followed by OTC in bovine liver (74.46 μg/kg). Risk characterization was applied for each of the two methods; The hazard quotients (HQ) did not exceed 0.059 for the ELISA method and 0.113 for the LC–MS method for any group of antibiotics, whereas the total hazard indexes (HI) were 0.078 and 0.021, respectively. The results showed the presence of different groups of antibiotics in meat from the Cretan market and that the health risk to antibiotics is low. A risk assessment analysis conducted for meat consumption and corrected for the aggregated exposure revealed no risk for the consumers.

19 April 2023 in Foods
Verified
Journal Article
Open access
PDF file
EHEleftheria Hatzidaki
Eleftheria Hatzidaki
MPMARINA PAGKALOU
MARINA PAGKALOU
IKIoanna Katsikantami
Ioanna Katsikantami
EVElena Vakonaki
Elena Vakonaki
Matthaios P. KavvalakisMatthaios P. Kavvalakis
Matthaios P. Kavvalakis
MTManolis Tzatzarakis
Manolis Tzatzarakis
Human milk is the healthiest option for newborns, although, under specific circumstances, infant formula is a precious alternative for feeding the baby. Except for the nutritional content, infant formulas and baby food must be pollutant-free. Thus, their composition is controlled by continuous monitoring and regulated by establishing upper limits and guideline values for safe exposure. Legislation differs worldwide, although there are standard policies and strategies for protecting vulnerable infants. This work presents current regulations and directives for restricting endocrine-disrupting chemicals and persistent organic pollutants in infant formulas. Risk assessment studies, which are limited, are necessary to depict exposure variations and assess the health risks for infants from dietary exposure to pollutants.


16 August 2017 in Tobacco Induced Diseases
Verified
Journal Article
Open access
CVConstantine Vardavas
Constantine Vardavas
CGCharis Girvalaki
Charis Girvalaki
FFFilippos T. Filippidis
Filippos T. Filippidis
MOMare Oder
Mare Oder
RKRuth Kastanje
Ruth Kastanje
PBPanagiotis K. Behrakis
Panagiotis K. Behrakis
Background: The use of e-cigarettes has increased during the past few years. Exposure to e-cigarette liquids, whether intentional or accidental, may lead to adverse events our aim was to assess factors associated with e-cigarette exposures across European Union Member States (EU MS). Methods:...