Publications by authors named "O P Ajsuvakova"
Article Synopsis
- Studies indicate a lack of research on microelement speciation in dairy cattle, with a focus on manganese (Mn) levels.
- The average Mn concentration in the blood serum of 80 dairy cows was found to be normal at 2.5 μg/L, with 21% showing low normal values (≤ 2 μg/L) and 25% exhibiting high normal values (≥ 2.72 μg/L).
- Analysis revealed that variations in Mn levels, even within normal ranges, lead to different distributions of Mn among protein fractions, showing significant shifts in the forms of Mn present in cows with low vs. high normal values.
The objective of the present study was to investigate the impact of iron deficiency and iron replenishment on serum iron (Fe), copper (Cu), manganese (Mn), and zinc (Zn) speciation and tissue accumulation in a deferrioxamine-induced model of iron deficiency. A total of 26 male Wistar rats were divided into three groups: control; Fe-deficient; Fe-replenished (with iron (II) gluconate). Serum ferritin and transferrin levels were assessed using immunoturbudimetric method.
View Article and Find Full Text PDFThe objective of the present study was assessment of the major copper and zinc species in dairy cow blood serum using a hybrid high-performance liquid chromatography-inductively coupled plasma-mass spectrometry (HPLC-ICP-MS) technique. A total of seventeen 5-6-year-old female Simmental cows, cultivated in the Southern Ural region, were examined. Speciation of serum Cu and Zn was performed using chromatographic PerkinElmer Series 200 system equipped with Agilent Bio SEC-5 Column and docked with NexION 300D mass spectrometer.
View Article and Find Full Text PDFThe objective of the study was to assess selenium and other elements levels in Indian Roti bread from Se-rich maize and rice using inductively coupled plasma mass-spectrometry. Se levels in Roti bread from Se-rich maize and rice exceeded those in the control samples by a factor of more than 594 and 156, respectively. Using Se-enriched maize increased bread Co, Cr, Mn, Mo, and Zn content, whereas Fe and I levels were reduced.
View Article and Find Full Text PDFThe objective of the present study was to assess the impact of cobalt (Co) exposure on tissue distribution of iron (Fe), copper (Cu), manganese (Mn), and zinc (Zn), as well as serum hepcidin levels in immature mice (18, 25, 30 days). Pregnant mice were exposed to 75 mg/kg b.w.
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