scholarly journals The presence of ochratoxin A residue in blood plasma of slaughtered swine

Author(s):  
Dragan Milicevic ◽  
Verica Juric ◽  
Miodrag Mandic ◽  
Milovan Djordjevic

The aim and task of this study was to determine the presence of ochratoxin A (OTA) residue in blood of swine, slaughtered regularly. The fact that ochratoxin A is heterogeneously distributed in a contaminated lot of feed material, makes the sampling problematic. It has been shown that an alternative method to monitor the presence of ochratoxin A in the feed is to analyze blood samples from swine, which reflect the toxin content of the ingested feed. With the aim of determining the presence of ochratoxin A residue in blood of swine slaughtered regularly, and originating from different areas of Vojvodina and Serbia, the samples were collected from the corresponding slaughter. During a three month investigation period, a total of 60 blood samples were analyzed. Spectrofluorimetric method was applied for sample analysis. The presence of the OTA residue was found in 56,6% of the examined plasma samples. The average OTA concentration in plasma was 2.91 ? 4.91 ng/mL (0,0-33,3 ng/mL). The experiment showed that the average OTA concentration in plasma samples originating from different areas of Vojvodina and Serbia, was not significantly low (p > 0,05).

Author(s):  
Jacek Wawrzykowski ◽  
Monika Jamioł ◽  
Wioleta Mojsym ◽  
Marta Kankofer

AbstractPhysiological balance between pro- and antioxidative processes is crucial for placentation and further development of fetus and placenta. Parameters of pro- and antioxidative profile may serve as markers of proper course of pregnancy. The aim of study was to assess whether the balance between pro- and antioxidative parameters during placentation phase in bovine placenta is maintained. Placental and blood samples were collected from healthy, HF, pregnant (2nd-3rd month) cows (n = 8) in slaughterhouse and in farm, respectively. Formylokinurenine and bityrosine content were measured spectrofluorimetrically in blood plasma and tissue homogenates while metabolites of lipid peroxidation, total antioxidant capacity, SH groups and activity of antioxidative enzymes (glutathione peroxidase and superoxide dismutase) were determined in examined tissues by spectrophotometry. Western blotting was used to confirm the presence of enzymatic proteins in placenta. Results: Local profile in tissues was more pronounced than general profile in blood plasma. Activities of antioxidative enzymes were significantly (p < 0.05) higher in 2nd compared to 3rd month of pregnancy in maternal part of placenta while prooxidant parameters showed opposite relationship. Obtained results showed significant differences when compared to data from non-pregnant animals or time of parturition. Further studies are necessary for elucidation of placentation phase in cows.


2020 ◽  
Vol 36 (3) ◽  
pp. 269-276 ◽  
Author(s):  
Kai Fan ◽  
Xi Cheng ◽  
Wenbo Guo ◽  
Xing Liu ◽  
Zhiqi Zhang ◽  
...  

Author(s):  
Vikrant Palande ◽  
Dorith Raviv Shay ◽  
MILANA Frenkel-Morgenstern

2014 ◽  
Vol 58 (11) ◽  
pp. 2219-2225 ◽  
Author(s):  
Nurshad Ali ◽  
Meinolf Blaszkewicz ◽  
M. Manirujjaman ◽  
Rasheda Perveen ◽  
Abdullah Al Nahid ◽  
...  

1983 ◽  
Vol 6 (7) ◽  
pp. 1319-1332 ◽  
Author(s):  
John K. Baker ◽  
John Kapeghian ◽  
Anthony Verlangieri

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1768
Author(s):  
Hiromi Takahashi ◽  
Takao Yasui ◽  
Annop Klamchuen ◽  
Narathon Khemasiri ◽  
Tuksadon Wuthikhun ◽  
...  

RNA analytical platforms gained extensive attention recently for RNA-based molecular analysis. However, the major challenge for analyzing RNAs is their low concentration in blood plasma samples, hindering the use of RNAs for diagnostics. Platforms that can enrich RNAs are essential to enhance molecular detection. Here, we developed the annealed ZnO/Al2O3 core-shell nanowire device as a platform to capture RNAs. We showed that the annealed ZnO/Al2O3 core-shell nanowire could capture RNAs with high efficiency compared to that of other circulating nucleic acids, including genomic DNA (gDNA) and cell-free DNA (cfDNA). Moreover, the nanowire was considered to be biocompatible with blood plasma samples due to the crystalline structure of the Al2O3 shell which serves as a protective layer to prevent nanowire degradation. Our developed device has the potential to be a platform for RNA-based extraction and detection.


2010 ◽  
Vol 22 (3) ◽  
pp. 325-332 ◽  
Author(s):  
Pranathi R. Perati ◽  
Jun Cheng ◽  
Petr Jandik ◽  
Valoran P. Hanko

AIDS ◽  
2008 ◽  
Vol 22 (13) ◽  
pp. 1677-1679 ◽  
Author(s):  
Anne-Geneviève Marcelin ◽  
Roland Tubiana ◽  
Sidonie Lambert-Niclot ◽  
Gilles Lefebvre ◽  
Stéphanie Dominguez ◽  
...  

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