scholarly journals CHANGES IN RHODANESE CONTENT DURING PRIMARY SPREADING CULTURE OF EMBRYONIC KIDNEY CELLS REVEALED BY IMMUNO-ENZYMOLOGICAL METHOD

Embryologia ◽  
1967 ◽  
Vol 10 (1) ◽  
pp. 32-41 ◽  
Author(s):  
MASAKO T. FUKE ◽  
TOKINDO S. OKADA
Keyword(s):  
Author(s):  
A. B. Taylor ◽  
G. C. Cole ◽  
M. A. Holcomb ◽  
C. A. Baechler

An aliquot from a continuous fermenter culture of baby hamster kidney cells (BHK-21 Clone PD-4) (Wistar) maintained in Ca free Eagle's Basal Medium containing 2% Kaolin adsorbed fetal calf serum was planted in spinner flasks at 300,000 cells per ml, total volume 600 ml. After equilibration for one day at 35°C to insure that cells were in log phase, the culture was infected with the M-33-AGMK25 BHK-219 strain of rubella at an input multiplicity of about 6 TCID50 per cell. The virus was identified with specific rubella antiserum.Preliminary experiments had shown that such cultures would reach a peak or plateau HA titer of approximately 1:64, 24 hrs after inoculation and would continue to yield virus for 6 to 12 days. One hundred ml aliquot harvests were withdrawn daily and the culture was returned to volume with growth medium and incubation continued. The harvested cells were spun down rapidly at 2500 rpm per 15 mins., fixed in 3.7% gluteraldehyde in Ca free phosphate buffer saline, and post fixed in osmium tetraoxide. After dehydration, the cells were embedded in Epon 812 and cured approximately 20 hrs at 60°C.


2005 ◽  
Vol 173 (4S) ◽  
pp. 300-300
Author(s):  
Sreedhar Sagi ◽  
Lutz Trojan ◽  
Peter Aiken ◽  
Maurice S. Michel ◽  
Thomas Knoll

1997 ◽  
Vol 71 (12) ◽  
pp. 9180-9187 ◽  
Author(s):  
P G Conaldi ◽  
L Biancone ◽  
A Bottelli ◽  
A De Martino ◽  
G Camussi ◽  
...  

1980 ◽  
Vol 45 (8) ◽  
pp. 2364-2370 ◽  
Author(s):  
Antonín Holý ◽  
Erik De Clercq

Reaction of 3',5'-di-O-benzoyl-6-methyl-2'-deoxyuridine (IIa) with elementary bromine or iodine afforded 5-halogeno derivatives IIc and IId which on methanolysis gave 5-bromo-6-methyl-2'-deoxyurine (Ic) and 5-iodo-6-methyl-2'-deoxyurine (Id), respectively. The CD spectra of Ic, Id and 6-methyl-2'-deoxyuridine (Ia) are compared and discussed with regard to determination of the nucleoside conformation. Unlike 5-bromo- and 5-iodo-2'-deoxyuridine, the 6-methyl derivatives Ic and Id exhibit neither antibacterial nor antiviral activity. Nor do they exert any antimetabolic effect on the de novo DNA synthesis in primary rabbit kidney cells.


1991 ◽  
Vol 121 (1) ◽  
pp. 57-64 ◽  
Author(s):  
Delores M. Bowers-Komro ◽  
Donald B. McCormick

1978 ◽  
Vol 234 (1) ◽  
pp. R34-R38
Author(s):  
T. Uchikawa ◽  
A. B. Borle

This paper describes a method to measure calcium fluxes and calcium exchangeable pools in tissue slices by continuous perifusion in flow-through chambers. 45Ca desaturation from rat kidney slices can be analyzed as in an open three-compartment catenary system. A set of equations is given to calculate all the relevant kinetic parameters from the triple exponential equations which best fit the desaturation curves. The results show that the kinetic parameters obtained in kidney slices by this new method are in the same order of magnitude as those previously observed in cultured monkey kidney cells.


2003 ◽  
Vol 77 (13) ◽  
pp. 7539-7544 ◽  
Author(s):  
Ayato Takada ◽  
Heinz Feldmann ◽  
Thomas G. Ksiazek ◽  
Yoshihiro Kawaoka

ABSTRACT Most strains of Ebola virus cause a rapidly fatal hemorrhagic disease in humans, yet there are still no biologic explanations that adequately account for the extreme virulence of these emerging pathogens. Here we show that Ebola Zaire virus infection in humans induces antibodies that enhance viral infectivity. Plasma or serum from convalescing patients enhanced the infection of primate kidney cells by the Zaire virus, and this enhancement was mediated by antibodies to the viral glycoprotein and by complement component C1q. Our results suggest a novel mechanism of antibody-dependent enhancement of Ebola virus infection, one that would account for the dire outcome of Ebola outbreaks in human populations.


1991 ◽  
Vol 266 (27) ◽  
pp. 17729-17732 ◽  
Author(s):  
S.H. Low ◽  
S.H. Wong ◽  
B.L. Tang ◽  
P. Tan ◽  
V.N. Subramaniam ◽  
...  

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