A Micromethod for the Colorimetric Determination of Total Serum Proteins and of Serum Albumin and Globulin

1949 ◽  
Vol 38 (1) ◽  
pp. 335-339 ◽  
Author(s):  
Bertil Josephson ◽  
Hans Andurén
Blood ◽  
1962 ◽  
Vol 20 (2) ◽  
pp. 156-164 ◽  
Author(s):  
EDWARD J. SARCIONE ◽  
C. WILLIAM AUNGST

Abstract 1. An abnormal serum protein pattern in a patient with Wegener’s granulomatosis and five of his relatives was identified as bisalbuminemia by electrophoretic and immunochemical methods. 2. With the exception of the patient with Wegener’s syndrome, the presence of bisalbuminemia was not associated with a significant change in total serum proteins, total albumin, serum components other than albumin, or any disease. 3. Addition of I131-thyroxine to bisalbumin sera resulted in thyroxine binding by albumin B but not by albumin A. The failure of albumin A to bind added I131-thyroxine leads to speculation that, in this family, neither albumin A nor B are identical to normal human serum albumin.


1966 ◽  
Vol 12 (4) ◽  
pp. 194-205 ◽  
Author(s):  
Alberto Fernandez ◽  
Charles Sobel ◽  
Harry Goldenberg

Abstract A simple and reliable method has been developed for the analysis of serum proteins. Globulins are precipitated from serum with HCI- ethanol. The albumin remains in the supernatant fluid. The albumin fraction is then precipitated by alcoholic sodium acetate. The proteins are redissolved and determined colorimetrically following their reaction with the biuret reagent. Recovery and electrophoretic studies indicate that the method affords a clean-cut separation of albumin from the globulin fraction. Lipemia does not appear to interfere with the analysis.


2017 ◽  
Vol 4 (1) ◽  
pp. 162 ◽  
Author(s):  
Balvinder Singh Arora ◽  
Indu Biswal ◽  
Poornima Sen ◽  
Santhosh Rajan ◽  
Amjad Ali ◽  
...  

Background: Chronic kidney disease (CKD) is imposing newer challenges, not only globally, but, also in India, especially managing the end stage renal disease (ESRD). Screening for CKD at an early stage, by, high sensitivity C reactive protein (hsCRP) with or without other clinical, biochemical or anthropometric parameters helps initiate specific therapy to reduce the progression of renal disease. Although, malnutrition, inflammation and cardio vascular diseases (CVD) have been shown as significant independent risk factors of mortality in CKD patients, but, whether there exists any relationship between hsCRP and serum proteins and serum albumin levels, one of the important indicators of PEM, has not been extensively studied in pre-dialysis CKD patients.Methods: The study included a total of 60 adult subjects. Of these, 30 were study cases who fulfilled the case definition of CKD and were compared with 30 patients who did not show any signs or symptoms of CKD. As per the objective - hsCRP values were estimated by ELISA test, quantified and statistically correlated with total serum proteins and albumin levels.Results: A significant difference was found in the mean value of hsCRP in cases and in controls (p value 0.001). No significant difference was observed in the mean level of total serum protein in cases and controls, but, the mean differences in the level of serum albumin between cases and controls was significant. The association of serum albumin and hsCRP was found to be significant (p value <0.001). If a level of serum albumin < 3.5 is taken as a marker of malnutrition, it is found that 66.66% of patients have hypo-albuminaemia.Conclusions: The present study comes to an important conclusion that hsCRP is a useful  independent predictor of CKD and if correlated with serum albumin levels, it would help clinician manage the patient effectively by initiating an aggressive yet very appropriate therapy at the pre-dialysis stage with the likelihood of an ‘evidence based’ reduction in morbidity and mortality.


1959 ◽  
Vol 57 (3) ◽  
pp. 309-320 ◽  
Author(s):  
P. Johnson ◽  
A. E. Pierce

1. Neonatal serum proteins and those of maternal colostrum have been examined in the Spinco analytical ultracentrifuge and the Perkin-Elmer electrophoresis apparatus. To facilitate correlations between the two types of result, certain protein fractions have been prepared electrophoretically and examined in the ultracentrifuge.2. The electrophoretically distinguishable components of precolostral serum, albumin, α and β globulin and traces of γ globulin sedimented mainly as a single boundary which showed evidence of a slower component (probably fetuin) with a sedimentation constant of about 3S. A small proportion of a macroglobulin component (S020 ≅ 16S), associated with the α globulin, was also present. In conformity with the very low γ globulin, there was a complete lack of globulin with S020 ≅ 6·5–7·0S. The β globulin and the bulk of the α globulin sedimented closely with albumin, whose sedimentation constant in an electrophoretically isolated fraction was somewhat lower than normal, probably as a result of α-globulin contamination.3. The electrophoretic and ultracentrifuge analysis of postcolostral calf serum showed evidence of passive absorption from the maternal colostrum of immune lactoglobulin. There was a rise in the concentration of total serum protein of which up to 51·6% was immune lactoglobulin, of sedimentation constant 6–6·5S. No such component occurs in precolostral sera. The electrophoretic and ultracen-trifugal characteristics of this globulin were not significantly altered as the result of absorption. The acquisition of immune lactoglobulin was accompanied by a simultaneous fall in serum albumin concentration.4. Examination of colostrum, rennin-produced colostral whey, and of electrophoretic fractions prepared from colostrum showed the presence of a small proportion of a macroglobulin (S020 ≅ 18S), a well-defined immune lactoglobulin of S020 ≅ 6·4S and electrophoretic properties in the γ-range, and a group of electrophoretically more mobile components with sedimentation constants ranging downwards from 3S.5. Electrophoretically prepared fractions from the serum of a deprived calf 27 days old showed sedimentation properties in conformity with the results on precolostral sera, with the macroglobulin component being again associated with α globulin. The remainder of α and β globulin sedimented alongside albumin and the additional γ-globulin component in a single boundary of S020 ≅ 6·5–7S.6. The concentration of autogenous γ globulin developed by calves which had been deprived of colostrum increased with time and was generally in fair agreement with that of the 6·5–7S component.The authors wish to thank Sir Alan Drury, F.R.S., for his interest and encouragement during the course of this work, Mr N. Buttress, Mr D. Hardman and Miss J. Mallon for technical assistance and Mr J. Clark for assistance in the care and handling of the calves.


1959 ◽  
Vol 36 (2) ◽  
pp. 193-201 ◽  
Author(s):  
Julius A. Goldbarg ◽  
Esteban P. Pineda ◽  
Benjamin M. Banks ◽  
Alexander M. Rutenburg

2013 ◽  
Vol 12 (7) ◽  
pp. 460-465
Author(s):  
Sameer Amereih ◽  
Zaher Barghouthi ◽  
Lamees Majjiad

A sensitive colorimetric determination of fluoride in drinking water has been developed using a polymeric zirconium complex of 5-(2-Carboxyphenylazo)-8-Hydroxyquinoline as fluoride reagents. The method allowed a reliable determination of fluoride in range of (0.0-1.5) mg L-1. The molar absorptivity of the complex formation is 7695 ± 27 L mol-1 cm-1 at 460 nm. The sensitivity, detection limit, quantitation limit, and percentage recovery for 1.0 mg L-1 fluoride for the proposed method were found to be 0.353 ± 0.013 μg mL-1, 0.1 mg L-1, 0.3 mg L-1, and 101.7 ± 4.1, respectively.


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