Diagnostic value of fatty acid-binding protein determination in urologists and nephrologists clinical practice

Author(s):  
Konstantin R. Galkovich

This review summarizes the data on the diagnostic value of determining the fatty acid-binding protein (FABP) in urological and nephrological diseases. A physiological role of this protein in the pathogenesis of malignant neoplasms of the kidney, bladder, and prostate was analyzed. The dynamics of FABP in serum and urine with decreased renal function was studied: this protein is considered as a diagnostic and prognostic marker for chronic kidney disease and acute renal injury. The value of FABP for early screening of patients with obstructive nephropathy was revealed, and its role in predicting the restoration of kidney function was studied: the dynamics of FABP content can characterize the process of graft recovery, determine the need for hemodialysis. In patients with oligozooastenospermia, a reduced content of FABP in the ejaculate was registered, which was probably an adverse sign indicating a violation of male fertility.

1996 ◽  
Vol 320 (3) ◽  
pp. 729-733 ◽  
Author(s):  
Alfred E. A. THUMSER ◽  
David C. WILTON

The physiological role of liver fatty acid-binding protein (L-FABP) has yet to be clarified. An important feature of this member of the family of intracellular lipid-binding proteins is the wide range of compounds that have been identified as potential physiological ligands. By using recombinant L-FABP, the binding of cholesterol, bile salts and their derivatives has been investigated under conditions that allow a direct comparison of the binding affinities of these ligands for fatty acids. The results demonstrate an inability of L-FABP to bind cholesterol, although the anionic derivative, cholesteryl sulphate, will bind under similar assay conditions. Of the bile salts examined, lithocholate and taurolithocholate sulphate showed the greatest binding to L-FABP. It is proposed that an important function of L-FABP is to bind certain physiological amphipathic anions, thus preventing the ‘free’ concentrations of these compounds from exceeding their critical micelle concentration, which could result in cell damage.


2016 ◽  
Vol 212 (5) ◽  
pp. 961-968 ◽  
Author(s):  
Shokei Matsumoto ◽  
Kazuhiko Sekine ◽  
Hiroyuki Funaoka ◽  
Tomohiro Funabiki ◽  
Motoyasu Yamazaki ◽  
...  

2021 ◽  
pp. 70-74
Author(s):  
Yevhen Sid ◽  
Oleksandr Kulbachuk

The relevance of the early detection of myocardial necrosis is due to the difficulties of differential diagnosis in the first hours of the development of acute coronary syndrome. Therefore, the doctors of the first contact, as before, are interested in an early cardiac marker and the presence of tests based on it. Heart fatty acid binding protein (h-FABP) is a cardiac marker that increases in the blood to diagnostic values after just one hour from the beginning of clinical manifestations. The objective: to determine the diagnostic value of heart fatty acid binding protein in group of patients with NSTEMI. Materials and methods. We examined 280 patients with STEMI, 91 patients with NSTEMI, 76 with stable angina pectoris. Blood samples were taken from all patients at the first contact to determine troponin I, a heart fatty acid binding protein and CPK-MB. Patients with NSTEMI were divided into three subgroups: the first – up to 3 hours from the onset of symptoms, the second – from 3 to 6, the third from 6 to 12. The level of heart fatty acid binding protein in plasma was determined by enzyme immunoassay. Results. The early detection of AMI in people visiting primary care doctors with chest pain continues to be a challenge. Undoubtedly, cardiac troponins are the “gold standard” for the diagnosis of AMI, but early detection of these can give a negative result. The results of the studies show a high diagnostic efficacy of h-FABP in the early diagnosis of AMI, and it is superior in sensitivity (in the first hours from the onset of the disease) to cardiac troponins. So, for example, in the subgroup of patients with the onset of symptom manifestation up to 3 hours for h-FABP with a cut-off >0,48 ng/ml, the sensitivity was 92.7 % and specificity was 97,3 % (AUC=0,99; 95 % CI AUC 0,942–0,998). In the same subgroup, troponin I had a specificity of  22,0 %, with cut off >0,84 ng/ml (AUC=0,71; 95 % CI AUC 0,615–0,787). Conclusions. The level of cardiac protein that binds fatty acids is significantly increased in patients with acute myocardial infarction compared with stable coronary heart disease.


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