Evaluation of two digoxin radioimmunoassay procedures in which 125I-labeled digoxin is used.

1976 ◽  
Vol 22 (2) ◽  
pp. 193-197 ◽  
Author(s):  
Z J Kuczala ◽  
G S Ahluwalia
Keyword(s):  
Regression Analysis ◽  
Serum Albumin ◽  
Comparative Evaluation ◽  
Digoxin Concentration ◽  
Albumin Concentration ◽  
Serum Albumin Concentration ◽  
Iodine 125 ◽  
Commercial Kits ◽  
Digoxin Radioimmunoassay ◽  
Low Serum

Abstract We present a comparative evaluation of two commercial kits, the "Quantitope" and "GammaCoat," for radioimmunoassay of digoxin in serum. These kits, in which iodine-125 is used as a label, proved to suitable for digoxin assay as determined by their reproducibility, sensitivity, precision, and a regression analysis. Hemolysis, lipemia, and icterus did not affect results. However, in some cases hypoalbuminemia falsely lowered the assayed digoxin concentration. Recovery of pure digoxin added to native patients' sera having low albumin concentration (24-28 g/liter) ranged from 67-105% with the Quantitope kit and 70-110% with the GammaCoat kit. Low serum albumin concentration did not always decrease the recovery of digoxin; this effect varied from serum to serum, which may indicate that there are factors other than albumin that affect the assay of digoxin.

scholarly journals Serum Albumin and Future Risk of Hip, Humeral, and Wrist Fractures in Caucasian Men: New Findings from a Prospective Cohort Study

2019 ◽  
Vol 28 (5) ◽  
pp. 401-409 ◽  
Author(s):  
Setor K. Kunutsor ◽  
Ari Voutilainen ◽  
Michael R. Whitehouse ◽  
Samuel Seidu ◽  
Jussi Kauhanen ◽  
...  
Keyword(s):  
Serum Albumin ◽  
Area Under The Curve ◽  
Fracture Prevention ◽  
Albumin Concentration ◽  
Serum Albumin Concentration ◽  
Baseline Serum ◽  
Increased Risk ◽  
New Findings ◽  
Caucasian Men ◽  
Low Serum

Objective: Low serum albumin concentration is associated with poor health outcomes, but its relationship with the risk of fractures has not been reliably quantified. We aimed to assess the prospective association of serum albumin with the risk of fractures in a general population. Subjects and Methods: Baseline serum albumin concentrations were measured in 2,245 men aged 42–61 years in the Kuopio Is­chemic Heart Disease study. Hazard ratios (HRs) (95% confidence intervals) were calculated for incident fractures. Results: A total of 121 fractures (hip, humeral, or wrist) were recorded during a median follow-up of 25.6 years. The risk of fractures increased linearly below a serum albumin concentration of ∼48 g/L. The age-adjusted HR (95% CI) for fractures per 1 standard deviation lower serum albumin was 1.24 (1.05–1.48). On further adjustment for several conventional and emerging risk factors, the HR was attenuated to 1.21 (1.01–1.45). Comparing the bottom versus top quartile of serum albumin levels, the corresponding adjusted HRs were 2.48 (1.37–4.48) and 2.26 (1.23–4.14). The association of serum albumin with fracture risk did not differ substantially according to age, body mass index, blood pressure, physical activity, alcohol consumption, socioeconomic status, inflammation, prevalent diseases, and smoking. Serum albumin at a threshold of 41.5 g/L demonstrated an area under the curve of 0.5850. Conclusion: In middle-aged Caucasian men, low serum albumin is associated with an increased risk of future fractures. The potential relevance of serum albumin concentrations in fracture prevention and prediction deserves further evaluation.

Low serum albumin concentration predicts the need for surgical intervention in neonates with necrotizing enterocolitis

2020 ◽  
Vol 55 (12) ◽  
pp. 2625-2629
Author(s):  
Shazia P. Sharif ◽  
Florian Friedmacher ◽  
Amir Amin ◽  
Rafdzah A. Zaki ◽  
Michael F. Hird ◽  
...  
Keyword(s):  
Serum Albumin ◽  
Necrotizing Enterocolitis ◽  
Surgical Intervention ◽  
Albumin Concentration ◽  
Serum Albumin Concentration ◽  
Low Serum

Pharmacokinetics of Cerivastatin in Renal Impairment Are Predicted by Low Serum Albumin Concentration Rather Than by Low Creatinine Clearance

1999 ◽  
Vol 39 (2) ◽  
pp. 147-154 ◽  
Author(s):  
Stefan V. Vormfelde ◽  
Wolfgang Mück ◽  
Stefan M. Freudenthaler ◽  
Petra Heyen ◽  
Nikolaus Schmage ◽  
...  
Keyword(s):  
Renal Impairment ◽  
Serum Albumin ◽  
Creatinine Clearance ◽  
Albumin Concentration ◽  
Serum Albumin Concentration ◽  
Low Serum

Plasma Selenium Concentrations in Patients with Euthyroid Sick Syndrome

1992 ◽  
Vol 38 (9) ◽  
pp. 1885-1888 ◽  
Author(s):  
F Van Lente ◽  
R Daher
Keyword(s):  
Serum Albumin ◽  
Selenium Concentration ◽  
Selenium Supplementation ◽  
Molar Ratio ◽  
Albumin Concentration ◽  
Serum Albumin Concentration ◽  
Selenium Status ◽  
Euthyroid Sick Syndrome ◽  
Plasma Selenium ◽  
Low Serum

Abstract We evaluated plasma selenium concentrations in patients with euthyroid sick syndrome express by low serum triiodothyronine (T3) concentrations. Selenium status in these patients was compared with that found in patients with both untreated and treated hypothyroidism. Selenium concentrations in plasma were significantly lower in hospitalized patients with either euthyroid sick syndrome (0.99 +/- 0.37 mumol/L) or treated hypothyroidism (1.09 +/- 0.25 mumol/L) than in patients with untreated hypothyroidism (1.39 +/- 0.28 mumol/L). However, there was no significant, independent relationship between selenium and the thyroid function indices determined in this study. The strongest association was between serum albumin concentration and either selenium (r = 0.65), T3 (r = 0.58), or the molar ratio of T3 to thyroxine (r = 0.64). The decreased average selenium concentration appears to be associated with the hypercatabolic state of severely ill patients, as indicated by the serum albumin concentration; these patients should be considered for selenium supplementation and their selenium status should be monitored.

Is There a Role for Albumin Administration in Nutrition Support?

1994 ◽  
Vol 28 (4) ◽  
pp. 478-482 ◽  
Author(s):  
Richard G. D'Angio
Keyword(s):  
Serum Albumin ◽  
Case Reports ◽  
Nutrition Support ◽  
Controlled Trials ◽  
Albumin Concentration ◽  
Serum Albumin Concentration ◽  
Medline Search ◽  
Albumin Administration ◽  
Routine Administration ◽  
Low Serum

OBJECTIVE: To review the administration of exogenous albumin in patients receiving nutritional support and determine if the use of albumin is supported by controlled trials. DATA SOURCES: MEDLINE search of English-language literature using the key terms albumin, parenteral nutrition, and enteral nutrition. The references of articles identified were also searched. STUDY SELECTION: Studies examining the administration of exogenous albumin to hypoalbuminemic patients receiving nutrition support. DATA EXTRACTION: Results from prospective randomized trials are presented in detail. Data from noncontrolled and animal studies are presented in areas where human controlled trials are limited. DATA SYNTHESIS: Albumin is a marker of malnutrition and numerous studies have demonstrated that a low serum albumin concentration is associated with increased morbidity and mortality. Investigators have attempted to improve outcome through the administration of exogenous albumin. The results of controlled trials examining exogenous albumin administration have been equivocal. One study demonstrated a significant decrease in overall complications, pneumonia, and sepsis. In two other controlled trials, albumin administration failed to decrease complications. None of the studies demonstrated a significant decrease in mortality or length of stay. A low serum albumin concentration has also been linked to intolerance to enteral feedings. Although case reports and one study support the administration of albumin, two prospective controlled trials have failed to demonstrate improved tolerance to enteral feeding in hypoalbuminemic patients receiving exogenous albumin. CONCLUSIONS: Evidence to date is insufficient to support the routine administration of exogenous albumin to hypoalbuminemic patients receiving nutrition support.

Clinical factors affecting cerebral oxygenation in patients undergoing peritoneal dialysis

2021 ◽  
pp. 039139882110200
Author(s):  
Taisuke Kitano ◽  
Kiyonori Ito ◽  
Susumu Ookawara ◽  
Taro Hoshino ◽  
Hideyuki Hayasaka ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Peritoneal Dialysis ◽  
Linear Regression ◽  
Serum Albumin ◽  
Cerebral Oxygenation ◽  
Linear Regression Analysis ◽  
Albumin Concentration ◽  
Healthy Controls ◽  
Serum Albumin Concentration ◽  
Factors Affecting

Background: Although cerebral regional oxygen saturation (rSO2) is significantly lower in hemodialysis (HD) patients than that in healthy controls, investigations on cerebral oxygenation in peritoneal dialysis (PD) patients are limited. We aimed to confirm the cerebral oxygenation status and identify the factors affecting cerebral rSO2 in PD patients. Methods: Thirty-six PD patients (21 men and 15 women; mean age, 62.8 ± 12.7 years) were recruited. In addition, 27 healthy volunteers (17 men and 10 women; mean age, 43.5 ± 18.8 years) were recruited as a control group. Cerebral rSO2 was monitored at the forehead using an INVOS 5100c oxygen saturation monitor. Results: Cerebral rSO2 was significantly lower in PD patients than that in healthy controls (57.0 ± 7.3% vs 68.9 ± 8.6%, p < 0.001); moreover, cerebral rSO2 was significantly correlated with natural logarithm (Ln)-PD duration ( r = −0.389, p = 0.019) and serum albumin concentration ( r = 0.370, p = 0.026) in a simple linear regression analysis. Multivariable linear regression analysis was performed using variables that showed a significant correlation and p < 0.20 (serum creatinine, serum sodium, Ln-C-reactive protein, and dosage of erythropoiesis-stimulating agent) with the cerebral rSO2. Cerebral rSO2 was independently associated with Ln-PD duration (standardized coefficient: −0.339) and serum albumin concentration (standardized coefficient: 0.316). Conclusions: Cerebral rSO2 was significantly affected by the PD duration and serum albumin concentration. Further prospective studies are needed to clarify whether preventing a decrease in serum albumin concentration leads to the maintenance of cerebral oxygenation in patients undergoing PD.

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