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Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Animal Sciences

2012

Turkish Journal of Veterinary & Animal Sciences

Heart

Articles 1 - 2 of 2

Full-Text Articles in Medicine and Health Sciences

Molecular And Kinetic Characterization Of Lactate Dehydrogenase Enzyme In The Heart And Breast Muscle Of Japanese Quail (Coturnix Japonica), Ram Pratap Singh, Kochiganti Venkata Hanumat Sastry, Radha Agarwal, Nitin Kumar Pandey, Vishesh Kumar Saxena, Jag Mohan Jan 2012

Molecular And Kinetic Characterization Of Lactate Dehydrogenase Enzyme In The Heart And Breast Muscle Of Japanese Quail (Coturnix Japonica), Ram Pratap Singh, Kochiganti Venkata Hanumat Sastry, Radha Agarwal, Nitin Kumar Pandey, Vishesh Kumar Saxena, Jag Mohan

Turkish Journal of Veterinary & Animal Sciences

In the present investigation, attempts were made to characterize lactate dehydrogenase (LDH) isozyme in quail heart and breast muscle by using electrophoresis, kinetic, and molecular techniques. Polyacrylamide gel electrophoresis of the heart and breast muscle revealed a single isozyme. Kinetic studies were carried out for further functional characterization of LDH isozyme in the heart and breast muscle. Substrate inhibition, enzyme kinetics, and inhibitor (urea) studies indicated that the isozymes present in these tissues differed in their functional properties. LDH isozyme present in the heart and breast muscle exhibited properties of LDH-A and LDH-B isozyme, respectively. Furthermore, RT-PCR amplification of Ldh-a …


Comparative Histological Structure Of The Sinus Node In Mammals, Abolghasem Nabipour Jan 2012

Comparative Histological Structure Of The Sinus Node In Mammals, Abolghasem Nabipour

Turkish Journal of Veterinary & Animal Sciences

The main function of the sinus node is to provide the electrical impulse responsible for normal cardiac rhythm. The rhythmic coordination depends on the passage of the excitation wave by the heart through its conductive system of impulse. There is considerable variability in the size and exact location of the sinus node of individual hearts even within the same species. Histological features of the sinus node including the cells, the nodal artery, the collagen framework, and the innervation, and also some physiological characteristics of the node, will be discussed.