Comparison of BASP1 and MARCKS protein exchange traits in the kidneys of rats with spontaneous

Исследовали возможные различия в обмене белков BASP1 и MARCKS в почках крыс со спонтанной гипертензией (линияSHR), путем сравнения уровней экспрессии мРНК этих белков в различных структурах почек. Работа выполнена на самцах крыс линии SHR (n=8) и крыс линии WKY (n=8), в возрасте 90 дней. Исследование проводили на образцах ткани из коркового и мозгового слоев почек. Уровни экспрессии мРНК BASP1 и MARCKS определяли методом ПЦР в реальном времени. Обнаружены достоверные различия (p<0.001) уровней экспрессии мРНК BASP1 и MARCKS между корковыми и мозговыми слоями почек у крыс линий SHR и WKY. При этом межлинейные различия в уровнях экспрессии мРНК обоих белков практически отсутствовали (p=0.050). Показано, что неравномерное распределение уровней экспрессии мРНКбелков BASP1 и MARCKS в мозговом и корковом слоях почек не зависит от уровня артериального давления и наличия спонтанной гипертензии This study aims to detect differences in BASP1 and MARCKS protein metabolisms in kidneys of spontaneously hypertensive rats by comparing their mRNA expression in different kidney structures. The work was performed on 90 days old male SHR (n = 8) and WKY (n = 8) rats. The study was carried out on tissue samples from cortical and medullar kidney layers. BASP1 and MARCKS mRNA expression levels were determined by real-time PCR. Significant differences (p <0.001) in the expression levels of BASP1 and MARCKS mRNA between cortical and medullar kidney layers in both SHR and WKY strain rats were found. Moreover, interlinear differences in the levels of both proteins’ mRNA expression were practically absent (p = 0.050). It was shown that uneven distribution of mRNA expression levels of BASP1 and MARCKS mRNA in kidneys medullar and cortical layers does not depend on the level of blood pressure and the presence of spontaneous hypertension.

Immunogenetic analysis of brown Schwyz cattle lines

Animals of brown Schwyz breed from pedigree farms of the Smolensk region were differentiated by their belonging to lines and related groups. Identification by blood groups was carried out according to the generally accepted technique, and the genetic structure of the uterine population of each line was established using marker alleles of the EAB locus; 12 genealogical lines were identified. The number of alleles in individual lines ranged from 15 to 53, which indicates the necessary hereditary diversity for improving the breed. At the same time, the most common B2O3Y2A`2E`2G`P`Q`Y`, I1Y2E`2G`I`G``1, G3O1T1Y2E`3F`2G``, G1O` and b markers somewhat offset the differences between them. The coefficient of genetic similarity r between lines and related groups of animals ranges from 0.20 to 0.90. Interlinear differences in milk production of cows were established.

GENETIC DIVERSITY OF SIMMENTAL CATTLE LINES BY POLYMORPHIC BLOOD GROUP SYSTEMS

Marking the cattle populations by individual genes and gene complexes createsnew opportunities for the development of selection when genetic methods aim to prevent the decrease of the populations’ gene variability. The article reveals the studies of the genetic structure of the Simmental cattle population, PAT breeding facility "Chervoniy Veleten" for erythrocyte antigens of 9 genetic systems (A, B, C, F, J, L, M, S, Z); linear affiliation of animals was taken into account. Animal erythrocyte antigens were determined by hemolysis reaction using monospecific sera - reagents. It is established that the spectrum of certain antigens is specific for Simmental cattle. The high frequency of antigenic factors G2, T2, E3/, G/, I/, O/, Q/, B// (q = 0,364 - 0,636) let us identify allele markers inherent in Simmental cattle: BGKE/G/O/Q/, BGKE/O/, BGO/, G2O2Y2, as well as OQ/, OI/Q/, TV /P/. The analysis of the of the most numerous factory lines (Neolit, Lavra, Zorkiy, Biser, Lascar) was carried out. It was shown that the markers of the Neolit line can be considered as the alleles: BOI'Q'(q = 0.2931) and BOTG`K` (q = 0.2392), Lavra - BBIA`K` (q = 0.1863) and BO` (q = 0.2500), Zorkiy - ВBGO` (q = 0.1325) and Вb, Biser - ВOI`Q` (q = 0.2246) and BG/ (q = 0.1920), Lascara - ВBGKE`GÒ `Q` (q = 0.1405) and BO` (q = 0.2735). It was found, that alleles EAB, which are more common for Laurel and Lascar lines (Kv=32.04%) are marked by the most similarities in the alleles of the EAB - blood group system, the highest values of the difference coefficient are characteristic of the Neolit - Lascar and Neolit - Laurel lines (55.66% and 54.86% respectively), the most differentiated was the Neolit line (Kv ser. = 49.48%, dser. = 0.332). Detection of interlinear differences in related groups of Simmental cattle allows preliminary prediction, correction and plan the animal selection for factory mating.