In this study, a new affinity gel for the purification of bovine testicular hyaluronidase (BTH) was synthesized. L-Tyrosine was added as the extension arm to the Sepharose-4B activated with cyanogen bromide. m-Anisidine is a specific inhibitor of BTH enzyme. m-Anisidine was clamped to the newly formed Sepharose-4B-L-tyrosine as a ligand. As a result, an affinity gel having the chemical structure of Sepharose-4B-L-tyrosine-m-anisidine was obtained. BTH purified by ammonium sulfate precipitation and affinity chromatography was obtained with a 16.95% yield and 881.78 degree of purity. The kinetic constants K(M) and V(Max) for BTH were determined by using hyaluronic acid as a substrate. K(M) and V(Max) values obtained from the Lineweaver-Burk graph were found to be 2.23 mM and 19.85 U/mL, respectively. In vitro effects of some chemicals were determined on purified BTH enzyme. Some chemically active ingredients were 1,1-dimethyl piperidinium chloride, β-naphthoxyacetic acid and gibberellic acid. Gibberellic acid showed the best inhibition effect on BTH.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.3109/14756366.2014.949253 | DOI Listing |
Talanta
December 2024
Institute of Analytical Chemistry of the Czech Academy of Sciences, Veveri 97, 602 00, Brno, Czech Republic. Electronic address:
In this work, we present the synthesis and application of fluorescent rhodamine B hydrazide for the derivatization of simple oligosaccharides and complex glycans using a hydrazone formation chemistry approach. The labeling conditions and the experimental setup of CE/LIF were optimized by analyzing oligosaccharide standards. The CE/LIF separations were performed in polybrene-coated capillaries eliminating the need for the purification step after derivatization.
View Article and Find Full Text PDFOpen Vet J
November 2024
Department of Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
Background: Infectious bovine rhinotracheitis (IBR) is a global contagious respiratory disease of ruminants caused by Bovine Herpes virus-1 (BoHV-1). It causes substantial financial losses in the dairy industry worldwide and is considered one of the most important causative agents of abortion and reproductive problems in dairy cattle.
Aim: This study aimed to estimate the seroprevalence of IBR and the related risk factors in the dairy population in Gharbia governorate, Egypt.
Open Vet J
November 2024
Research Center for Veterinary Science, National Research and Innovation Agency (BRIN), Bogor, Indonesia.
Paratuberculosis is an infectious disease caused by subspecies (MAP). Typically, ruminant animals including cattle, buffalo, goats, and sheep are infected with MAP. Animals get infected with MAP in a number of ways, such as by eating or drinking contaminated food or water, or by nursing from an infected mother who may have contaminated teats or directly shed the organism in milk or colostrum.
View Article and Find Full Text PDFOpen Vet J
November 2024
Department of Nursing, Technical Institute of Suwaria, Middle Technical University, Baghdad, Iraq.
Background: Ozone (O) is a promising alternative antibacterial agent that has recently been used in meat processing. The understanding of the appropriate functional settings of O for addressing food safety problems is still insufficient.
Aim: The aim of this study was, therefore, to investigate the effects of exposure to O on the bacteriological quality of retail meat inoculated with at refrigeration temperatures.
Open Vet J
November 2024
Research Center for Preclinical and Clinical Medicine, National Research and Innovation Agency (BRIN), Bogor, Indonesia.
Bovine trichomoniasis is a reproductive illness that affects cattle causing pyometra, early to mid-pregnancy miscarriages, and lower birth rates. is a flagellated protozoan which first discovered in France in 1888 and composts three phases during its lifecycle including trophozoite, cyst, and pseudocyst. In addition, several factors contributed to the prevalence of trichomoniasis and fall into three categories are management, cow, and bull-related factors.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!