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Št. zadetkov: 8
ǂA ǂrapid analysis of Bisphenol A using MISPE coupled with HPLC-FLD in tissues of food-producing animals
Vesna Cerkvenik, Sabina Šturm
Izvirni znanstveni članek
Oznake: bisphenol A;tissue analysis;solid phase extraction;molecularly imprinted polymers;liquid chromatography;bisphenol A-glycidyl methacrylate;
Bisphenol A (BPA) is a highly-produced organic compound of anthropogenic origin with a wide-range use and is ubiquitously present in both living organisms and the environment. A previously published analytical method for testing of the free (aglycone) BPA in foodstuffs was simplified and optimized f ...
Leto: 2021 Vir: Veterinarska fakulteta (UL VF)
Toksikokinetika bisfenola A pri ovcah in njegov vpliv na spolne organe ovnov v puberteti
Sabina Šturm, Vesna Cerkvenik Flajs, Tanja Švara
Doktorska disertacija
Oznake: fenoli – analize;toksikokinetika;kromatografija;tekočinska;kemijske analize krvi;mleko – analize;urin – analize;feces – analize;reprodukcija;modo;nadmodek;ovce;
Namen prvega sklopa doktorske naloge je bil preučiti toksikokinetične (TK) parametre pri ovci in ovnih pasme istrska pramenka po zaporednem dietarnem in podkožnem vnosu bisfenola A (BPA). Za določanje koncentracije prostega in celokupnega BPA v krvni plazmi, mleku, urinu in iztrebkih ovce ter za dol ...
Leto: 2022 Vir: Veterinarska fakulteta (UL VF)
Determination of free and total bisphenol A in the urine and feces of orally and subcutaneously dosed sheep by high-performance liquid chromatography with fluorescence detection
Sabina Šturm, Andrej Škibin, Milan Pogačnik, Vesna Cerkvenik
Izvirni znanstveni članek
Oznake: environment;emerging contaminants;analytical chemistry;HPLC–analysis;phenolic compounds;livestock;farm animals;ruminants;excreta;manure;chromatography;high pressure liquid;domestic animals;
An analytical procedure has been introduced to enable a study of the excretion of free bisphenol A (BPA), total BPA and its main metabolite bisphenol A glucuronide (BPA–GLUC). In the experiment, in which 100 μg/kg b. w. BPA was administered daily to one Istrian Pramenka sheep for 5 days with consecu ...
Leto: 2020 Vir: Veterinarska fakulteta (UL VF)
Preliminary toxicokinetic study of BPA in lactating dairy sheep after repeated dietary and subcutaneous administration
Sabina Šturm, Iztok Grabnar, Andrej Škibin, Milan Pogačnik, Vesna Cerkvenik
Izvirni znanstveni članek
Oznake: toxicology;bisphenols A - pharmacokinetics - toxicity;sheep;
Dietary intake is the predominant route of human exposure to bisphenol A and one of the important food commodities is milk. the aim of our study was to preliminarily evaluate the bisphenol A exposure and disposition in sheep milk after repeated dietary and subcutaneous administration of a relatively ...
Leto: 2020 Vir: Veterinarska fakulteta (UL VF)
Bisphenol A in edible tissues of rams exposed to repeated low-level dietary dose by high-performance liquid chromatography with fluorescence detection
Vesna Cerkvenik, Andrej Škibin, Tanja Švara, Mitja Gombač, Milan Pogačnik, Sabina Šturm
Izvirni znanstveni članek
Oznake: Bisphenol A;Total bisphenol A;Sheep;Tissues;Distribution;HPLC-fluorescence;Risk assessment;
The presented work deals with levels and distribution of bisphenol A (BPA) in the edible tissues of a large food-producing animal species. An experimental animal study included 14 young Istrian pramenka rams (Ovis aries), of which seven were exposed for 64 days to a low dietary dose of BPA at 25 µg/ ...
Leto: 2022 Vir: Veterinarska fakulteta (UL VF)
Seminiferous epithelium cycle staging based on the development of the acrosome in ram testis
Sabina Šturm, Tanja Švara, Ellinoir Spörndly-Nees, Vesna Cerkvenik, Mitja Gombač, Anna-Luisa Weber, Klaus Weber
Izvirni znanstveni članek
Oznake: ram;spermatogenesis;staging;acrosome development;spermiogenesis;
Abstract: Testicular histopathology is considered the most sensitive and reliable method to detect the effects of chemicals on sperm production. To carry out a sensitive examination of testicular histopathology and interpret the changes require knowledge of spermato- genic stages. Spermatogenic st ...
Leto: 2021 Vir: Veterinarska fakulteta (UL VF)
Experimental exposure to bisphenol A has minimal effects on bone tissue in growing rams
Jana Brankovič, Jakob Leskovec, Sabina Šturm, Vesna Cerkvenik, Saša Šterpin, Joško Osredkar, Estera Pogorevc, David Antolinc, Milka Vrecl
Izvirni znanstveni članek
Oznake: bisphenol A;rams;serum bone biomarkers;bone geometry;trabecular bone;cortical bone;bone biomechanics;mineral content;
Bisphenol A (BPA) is a well-known synthetic compound that belongs to the group of endocrine-disrupting chemicals. Although bone tissue is a target for these compounds, studies on BPA-related effects on bone morphology in farm animals are limited. In this preliminary study, we investigated the effect ...
Leto: 2022 Vir: Veterinarska fakulteta (UL VF)
Basic exploratory study of bisphenol A (BPA) dietary administration to Istrian Pramenka rams and male toxicity investigation
Sabina Šturm, Klaus Weber, Primož Klinc, Ellinoir Spörndly-Nees, Azadeh Fakhrzadeh, Tanja Knific, Andrej Škibin, Věra Fialová, Yoshimasa Okazaki, Tanja Razinger, Jürgen Laufs, Robert Kreutzer, Milan Pogačnik, Tanja Švara, Vesna Cerkvenik
Izvirni znanstveni članek
Oznake: bisphenol A;rams;toxicokinetics;male toxicity;sperm;
Bisphenol A (BPA), an endocrine-disrupting chemical and environmental pollutant, has been reported by many researchers to induce male reproductive toxicity in different experimental models. In this study, we investigated whether long-term exposure for two months to 25 ug/kg body weight (low dose) ...
Leto: 2022 Vir: Veterinarska fakulteta (UL VF)
Št. zadetkov: 8
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