scholarly journals IMMUNOFLUORESCENT LOCALIZATION OF ORNITHINE AMINOTRANSFERASE IN RAT LIVER

1970 ◽  
Vol 18 (4) ◽  
pp. 264-267 ◽  
Author(s):  
PATRICIA C. BRENNAN ◽  
C. PERAINO ◽  
R. J. M. FRY ◽  
R. W. SWICK

Ornithine aminotransferase (l-ornithine:2-oxoacid aminotransferase) (EC 2.6.1.13) was localized in the livers of rats fed diets differing in protein content with an indirect fluorescent antibody technique. The ornithine aminotransferase specific fluorescence in livers from rats fed a 60% protein diet was distributed throughout the cytoplasm of hepatic cells, and numerous fluorescent cells were observed throughout the lobules. Stained hepatic cells of rats fed a standard laboratory diet (24% protein) appeared to be less numerous and the fluorescence less intense than in rats fed the 60% diet. Livers from rats fed the 0% protein diet showed no specific fluorescence. The identification of ornithine aminotransferase in situ with the fluorescent antibody technique is compatible with measurements of the activity of enzyme extracted from the livers of rats fed similar diets.

2000 ◽  
Vol 41 (4-5) ◽  
pp. 301-308 ◽  
Author(s):  
N. Noda ◽  
H. Ikuta ◽  
Y. Ebie ◽  
A. Hirata ◽  
S. Tsuneda ◽  
...  

Fluorescent antibody technique by the monoclonal antibody method is very useful and helpful for the rapid quantification and in situ detection of the specific bacteria like nitrifiers in a mixed baxterial habitat such as a biofilm. In this study, twelve monoclonal antibodies against Nitrosomonas europaea (IFO14298) and sixteen against Nitrobacter winogradskyi (IFO14297) were raised from splenocytes of mice (BALB/c). It was found that these antibodies exhibited little cross reactivity against various kinds of heterotrophic bacteria. The direct cell count method using monoclonal antibodies could exactly detect and rapidly quantify N. europaea and N. winogradskyi. Moreover, the distribution of N. europaea and N. winogradskyi in a biofilm could be examined by in situ fluorescent antibody technique. It was shown that most of N. winogradskyi existed near the surface part and most of N. europaea existed at the inner part of the polyethylene glycol (PEG) gel pellet, which had entrapped activated sludge and used in a landfill leachate treatment reactor. It was suggested that this monoclonal antibody method was utilized for estimating and controlling the population of nitrifying bacteria as a quick and favorable tool.


1956 ◽  
Vol 2 (7) ◽  
pp. 677-683 ◽  
Author(s):  
J. de Repentigny ◽  
A. Frappier

The fluorescent antibody technique was used in an attempt to clarify the relationship between the morphology of the surface of Haemophilus pertussis and the antigenic properties of its capsular antigens. First, specific antibodies were produced by injection into rabbits of agglutinogenic and protective surface washings of the bacilli. Then, these antibodies were made fluorescent and used to mark specifically and in situ the original capsular antigens at the surface of bacilli grown in liquid as well as on solid media. Thus was obtained morphological and specific evidence for the presence of a capsule containing antigenic material.


1963 ◽  
Vol 41 (12) ◽  
pp. 2517-2521 ◽  
Author(s):  
Arthur Leznoff ◽  
Bernard A. Davis

The indirect fluorescent antibody technique was used to determine the cellular site of human chorionic gonadotropin (H.C.G.) in normal and toxaemic placentas, and in choriocarcinomas. In placental tissue specific fluorescence was located in the syncytial cells of the chorionic villi but not in the cytotrophoblast cells. In choriocarcinomas specific fluorescence was seen in the syncytial giant cells. No distinct difference could be demonstrated between normal and "toxic" placentas. Differences in the content of H.C.G. in placentas at various stages of pregnancy were noted. Maximum amounts were demonstrated in tissue of less than 14 weeks gestation. Lesser quantities could be seen in more mature placentas and some specific fluorescence could be seen in most full term placentas.


1963 ◽  
Vol 41 (1) ◽  
pp. 2517-2521 ◽  
Author(s):  
Arthur Leznoff ◽  
Bernard A. Davis

The indirect fluorescent antibody technique was used to determine the cellular site of human chorionic gonadotropin (H.C.G.) in normal and toxaemic placentas, and in choriocarcinomas. In placental tissue specific fluorescence was located in the syncytial cells of the chorionic villi but not in the cytotrophoblast cells. In choriocarcinomas specific fluorescence was seen in the syncytial giant cells. No distinct difference could be demonstrated between normal and "toxic" placentas. Differences in the content of H.C.G. in placentas at various stages of pregnancy were noted. Maximum amounts were demonstrated in tissue of less than 14 weeks gestation. Lesser quantities could be seen in more mature placentas and some specific fluorescence could be seen in most full term placentas.


Science ◽  
1964 ◽  
Vol 145 (3635) ◽  
pp. 943-945 ◽  
Author(s):  
G. C. Brown ◽  
H. F. Maassab ◽  
J. A. Veronelli ◽  
T. J. Francis

1965 ◽  
Vol 13 (3) ◽  
pp. 155-160 ◽  
Author(s):  
H. J. KEUTEL

Fluorescent labeled antibodies were used for the demonstration of uromucoid. This urine specific mucoprotein is demonstrably present only in the epithelial cells of the proximal segments of the normal human renal tubules and in the matrix of human kidney stones of all the common crystalline compositions.


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