Effects of Intravenous Infusion of Urographic Contrast Agents on Glomerular Filtration Rate, Serum Concentration and Urinary Excretion of Uric Acid in Subjects with Normal Renal Function

1987 ◽  
pp. 145-150 ◽  
Author(s):  
C. Jacobs ◽  
D. Nicolay ◽  
J. Grellet ◽  
Ph. Curet ◽  
A. Jardin
Keyword(s):  
Renal Function ◽  
Uric Acid ◽  
Glomerular Filtration Rate ◽  
Serum Concentration ◽  
Urinary Excretion ◽  
Contrast Agents ◽  
Glomerular Filtration ◽  
Normal Renal Function ◽  
Intravenous Infusion ◽  
Filtration Rate

Renal Tubular Protein Degradation of Radiolabelled Aprotinin (Trasylol) in Patients with Chronic Renal Failure

1993 ◽  
Vol 85 (6) ◽  
pp. 733-736 ◽  
Author(s):  
R. Rustom ◽  
J. S. Grime ◽  
P. Maltby ◽  
H. R. Stockdale ◽  
M. J. Jackson ◽  
...  
Keyword(s):  
Renal Failure ◽  
Renal Function ◽  
Glomerular Filtration Rate ◽  
Chronic Renal Failure ◽  
Glomerular Filtration ◽  
Normal Renal Function ◽  
Filtration Rate ◽  
Renal Uptake ◽  
The Mean ◽  
Renal Tubular

1. The new method developed to measure renal tubular degradation of small filtered proteins in patients with normal renal function, using radio-labelled aprotinin (Trasylol) (R. Rustom, J. S. Grime, P. Maltby, H. R. Stockdale, M. Critchley, J. M. Bone. Clin Sci 1992; 83, 289–94), was evaluated in patients with chronic renal failure. 2. Aprotinin was labelled with either 99mTc (40 MBq) or 131I (0.1 MBq), and injected intravenously in nine patients, with different renal pathologies. 51Cr-EDTA clearance (corrected for height and weight) was 40 + 5.4 (range 11.2-81) ml min−1 1.73 m−2. Activity in plasma and urine was measured over 24–48 h, and chromatography on Sephadex-G-25-M was used to separate labelled aprotinin from free 99mTcO4− or 131I−. Renal uptake was measured for 99mTc-labelled aprotinin only. 3. The volume of distribution was 20.2 + 2.3 litres. Chromatography showed all plasma activity as undegraded aprotinin, and urine activity only as the free labels (99mTcO4− or 131I−). 4. As in patients with normal renal function, activity in the kidney appeared promptly, with 5.7 + 2.5% of the dose detected even at 5 min. Activity rose rapidly to 9.4 + 1.6% of dose after 1.5 h, then more slowly to 15.0 + 0.5% of dose at 4.5 h, and even more slowly thereafter, reaching 24.1 + 2.8% of dose at 24 h. Extra-renal uptake was again insignificant, and both 99mTcO4− and 131I− appeared promptly in the urine, with similar and uniform rates of excretion over 24 h. 5. Both tubular uptake at 24 h and the rate of tubular metabolism over 24 h were lower than in the patients with normal renal function studied previously, but only the rate of tubular metabolism was directly related to the glomerular filtration rate (r = 0.75, P <0.02). 6. Correction for the reduced glomerular filtration rate yielded values for both tubular uptake (0.67 + 0.14 versus 0.32 + 0.03% of dose/ml of glomerular filtration rate, P <0.005), and tubular metabolism (0.033 + 0.07 versus 0.015 + 0.001% of dose h−1 ml−1 of glomerular filtration rate, P <0.005) that were higher by comparison with those for patients with normal renal function studied previously. 7. Fractional renal degradation of 99mTc-aprotinin (in h−1), derived from the mean rate of urinary excretion of the free isotope over a given interval, divided by the mean cumulative kidney uptake over the same interval, also fell steeply early, and then more slowly to 0.07 + 0.01 h−1 at 14.25 h (between 4.5 and 24 h). 8. It is concluded that the method described previously is also suitable in patients with chronic renal failure, allowing further research into renal disease progression.

Effects of Rehmanniae Radix Water Extract on Renal Function and Renin Secretion Rate in Unanesthetized Rabbits

1993 ◽  
Vol 21 (02) ◽  
pp. 179-186 ◽  
Author(s):  
Ho Sub Lee ◽  
Seong Tae Kim ◽  
Dong Kee Cho
Keyword(s):  
Renal Function ◽  
Glomerular Filtration Rate ◽  
Urinary Excretion ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Urine Volume ◽  
Water Extract ◽  
Secretion Rate ◽  
Renin Secretion ◽  
Rehmanniae Radix

This study was undertaken to explore the effects of different preparations of Rehmanniae Radix on renal function and renin secretion rate. Steamed Rehmanniae showed a decrease in urine volume, renal hemodynamics, and urinary excretion of electrolytes confined to the infused kidney, and was followed by an increase in urinary excretion of electrolytes from both kidneys. Dried Rehmanniae showed a decrease in urine volume, glomerular filtration rate, and urinary excretion of electrolytes, while raw Rehmanniae showed only an increase in urinary excretion of electrolytes. Steamed Rehmanniae and dried Rehmanniae decreased renin secretion rate, but raw Rehmanniae tended to increase renin secretion. These results suggest that the Rehmanniae Radix preparations have different effects on renal function and renin secretion rate.

scholarly journals Aspek Laboratorium Gagal Ginjal Kronik

2018 ◽  
Vol 6 (1) ◽  
pp. 14
Author(s):  
Febtarini Rahmawati
Keyword(s):  
Renal Function ◽  
Uric Acid ◽  
Glomerular Filtration Rate ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Chronic Renal Disease ◽  
Blood Gas Analysis ◽  
Gas Analysis ◽  
Blood Gas ◽  
Total Base

Chronic renal disease is a disorder of renal function or structure that lasts for more than three months, accompanied by a decrease in glomerular filtration rate. Decreasing of renal function monitoring is performed by measuring glomerular filtration rate, determining blood urea, creatinine, creatinine clearance, electrolytes, uric acid, blood gas analysis and tubular function. The Recent method for measuring glomerular filtration rate using inulin clearance, however, is not efficient. Further measurements of creatinine glomerular filtration rate were developed. Measurements of urea, creatinine and uric acid are currently using enzymatic methods of spectrophotometry, while electrolyte examination by selective ion electrode method. Blood gas analysis determined pH, PCO2, PO2, HCO3-, CO2 total, base excess and SO2. Examination of urine protein and urine sediments helps establish a diagnosis of chronic kidney disease

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