A substrain mouse serologically classified in ddN strain and its behavioral characteristics.

Rat models of ADHD.

Showing that an animal is hyperactive is not sufficient for it to be accepted as a model of ADHD. Based on behavioral, genetic, and neurobiological data, the spontaneously hypertensive rat (SHR) obtained from Charles River, Germany, (SHR/NCrl) is at present the best-validated animal model of ADHD. One Wistar Kyoto substrain (WKY/NHsd), obtained from Harlan, UK, is its most appropriate control. ...

Deficient corpus callosum in hybrids between ddN and three other abnormal mouse strains.

The mouse strain ddN from Japan was crossed with three other inbred strains prone to absence of the corpus callosum (BALB/cWah1, I/LnJ and 129/ReJ), and at least one brain with abnormally small corpus callosum was observed in offspring from each F1 hybrid cross. Data for several polymorphic protein markers revealed that the four strains are not closely related genetically. Nevertheless, they sh...

Evaluation of the Pathogenicity of A/Chicken/Iran/ZMT-173/99 H9N2 Strain of Avian Influenza Virus in Serologically Mycoplasma Galisepticum Positive and Negative Broiler Chickens

A Study on molecular characterization of Razi Bacillus anthracis Sterne 34F2 substrain in Iran

Anthrax, a zoonotic disease caused by Bacillus anthracis, has affected humans since ancient times. For genomic characterization of Razi B. anthracis Sterne 34F2 substrain, single nucleotide polymorphism (SNP) genotyping method developed by Van Erth, variable-number tandem-repeat (VNTR)-8 analysis proposed by Keim, and multiple-locus VNTR analysis (MLVA)-3 introduced by Levy were employed. In th...

Breakage of a DNA-protein complex induced by bleomycin and their repair in cultured mouse fibroblasts.

The effect of bleomycin on DNA strand breakage and its repair in cultured mouse fibroblast strain L-P3 (a substrain of L929) was studied. Treatment of L-P3 cells with bleomycin caused single-strand breaks of DNA as revealed by alkaline sucrose gradient centrifugation. The singlestrand breaks of DNA were rejoined within 3 hr when the treated cells were incubated at 37°in a medium free of the an...