Relative loss of oncogenic potency of mouse leukemia virus (Gross) after prolonged propagation in tissue culture.

Relative loss of oncogenic potency of mouse leukemia virus (Gross) after prolonged propagation in tissue culture.

Since the initial development of the "passage A" mouse leukemia virus in 1957, this virus has been propagated in our laboratory by serial passage in newborn C3H(f) mice. At the present time, 10(-2)-10(-3) dilutions in physiological saline solution of this mouse-passaged virus induce lymphatic leukemia in practically all inoculated mice after a latency of 3-5 months. On the other hand, when the ...

Propagation of Rabies Virus in Tissue Culture

Rabies virus has been propagated in serum-Tyrode solution containing either embryo mouse brain or embryo chick brain. The culture virus reached a titre of 3 x 10(-5) cc. after 4 days' incubation at 37 degrees C., and survived at least 2 months at 5 degrees C. in the liquid or dry state.

Adaptation of Horsesickness Virus to Tissue Culture

inductive effect of palatal connective tissue on alveolar mocosa after subepithelial connective tissue graft clinical & histologic study

چکیده ندارد.

: the effect of sericin levels (silk glue protein) on rate of in vitro maturation, fertilization and culture of sheep oocytes

هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...