Rat growth hormone was extracted from an acetone powder of transplantable mammosomatotropic pituitary tumors using buffered ammonium sulphate. Active material, precipitated by increasing the ammonium sulphate concentration to 1.5 M, was fractionated first by diethylaminoethyb cellulose chroma tography and then by preparative polyacrylamide gel electro phoresis. The yield of material in the pure...

To the Editor: Despite the worldwide economic impact of, and welfare issues associated with, infectious bovine abortifacients, as well as potential zoonotic threats to human health, accurate diagnosis of the causes of abortion is uncommon (1). This poor diagnosis could be explained in part by the lack of identifi cation of infectious abortifacient agents. Although Chlamydophila abortus is a kno...

Ap Applicati tions ons in in Pl Plant t Scien Sciences ces Rehmannia glutinosa (Gaertn.) Libosch. ex Fisch. & C. A. Mey. (Scrophulariaceae) is a perennial herbaceous species of medicinal value (Zhou, 2002 ; Shao et al., 2008). Its tuberous roots are commonly used in Chinese traditional medicine (Wen et al., 2002). In recent decades, a signifi cant number of chemical and pharmacological studies ...

The Balkan Region represents one of the Europe’s major centres of plant diversity, with an substantial number of endemic genera and species having a wide distribution throughout the diverse ecosystems of the region. Plants remain an unequalled source of biochemical diversity and in the last several decades there is an unprecedented interest towards identifying perspective leads of plant origin....

ILIEVA, B., Y. IVANOVA, P. VASILEVA, H. GAGOV and I. SAZDOVA, 2014. Infl uence of silver nanoparticles with different surface coating on the excised frog heart. Bulg. J. Agric. Sci., Supplement 1: 3–8 The surface coating of silver nanoparticles is crucial to the nanoparticle properties as size and shape, stability, solubility and targeting, which are responsible to their biological effects. In ...

G. López-Campos et al., Microarray Detection and Characterization of Bacterial Foodborne Pathogens, SpringerBriefs in Food, Health, and Nutrition, DOI 10.1007/978-1-4614-3250-0_2, © Guillermo Lopez-Campos, Joaquin V. Martinez-Suarez, Mónica Aguado-Urda, Victoria Lopez Alonso 2012 Abstract The detection and enumeration of microorganisms in food are an essential part of any quality control or foo...

  Scorpion venoms contain of variety of peptides toxic to mammals ، insects and crustaceans. Toxic peptides are the main factors in scorpion venom causing toxicity, (their amount being 1-3%of total venom.). Most of the scorpion toxins have been isolated from the venoms of scorpions in the family Buthidae. The scorpion Buthotus Schach belonging to the Buthidae family is widely found in the weste...

Background: Benzaldehyde dehydrogenase (BZDH) is encoded by the xylC that catalyzes the conversion of benzaldehyde into benzoate in many pathways such as toluene degradation. Objectives: In this study, the xylC gene from Rhodococcus ruber UKMP-5M was expressed in Escherichia coli, purified, and characterized.Materials and Methods: The xylC was amplified and cloned in E. coli. The re...