UNLABELLED Clinical and experimental study. Introduction. Of debatable etiology, Recurrent Aphthous Ulcerations (R.A.U), is most of the time considered an immunological deficiency. AIM The aim of this paper is to review the literature and clinical investigations regarding IgA-s, total proteins salivary concentration and basal salivary flow of patients with R.A.U. during activity and quiescenc...

We studied three methods (rate nephelometry, radial immunodiffusion, and trypsin-inhibitory capacity) for their ability to detect those individuals with a deficiency of alpha1-antitrypsin. The phenotype represented in 170 serum samples was determined by isoelectric focusing as the reference method. All three methods correctly identified Pi Z, Pi S, and Pi SZ phenotypes but varied in their abili...

A new laser nephelometric technique that measures C4d for the assessment of the activation of the classical complement pathway was developed. C4d was isolated from other larger C4 related molecules at a final concentration of polyethylene glycol of 12% and then quantitated by laser nephelometry using a commercially available antiserum, which reacts with C4d determinants. C4d standard (100%) was...

762 IntroductIon Rheumatoid arthritis (RA) is a chronic crippling disease that causes significant morbidity and even mortality. The etiology is not known and hence the diagnosis is based on the typical clinical picture of inflammatory symmetrical polyarthritis supported by imaging and serological investigations. Among the serological investigations, rheumatoid factor (RF) is the most widely use...

Three different techniques of lipase (EC 3.1.1.3) determination (titrimetry, nephelometry, and enzyme immunoassay) were used to investigate an interesting effect of ionic strength on enzyme activity. Both activation in the presence of NaCl (140 mmol/L) and strong immunoinhibition were observed for lipase from plasma of subjects with acute pancreatitis. Another type of lipase, not associated wit...

Abstract This study aims to determine the most frequent titers of anti-A and anti-B (both presumed immunoglobulin [Ig]M IgG) in Iranian group O blood donors compare these titer values with those found other studies. In addition, alloantibody production plasma levels four IgG subclasses were compared between high-titer non–high-titer groups. investigated 358 samples. Based on results, two groups...

the purpose of this study was to determine the effects of official soccer competition on saliva cortisol, testosterone and immunoglobulin a in male players. for this purpose, 14 fixed players (age: 28.24±4.3 years) were equally selected from two opponent teams in 2009 elimination cup. saliva samples at the rest and immediately after the first half time, before and after the second half time wer...

Within the past decade nephelometric methods of analysis have become increasingly popular in biochemical work, so that at present a nephelometer has come to be counted an indispensable piece of apparatus in every well equipped laboratory. Nephelometry has however the serious disadvantage that, as was first pointed out by Richards and Wells,i the amount of light reflected is not strictly proport...

BACKGROUND Bacterial colonization and infection are important factors in compromised wound healing. Antiseptics have become an alternative for antimicrobial applications as antibiotic resistance is increasing; they have multiple targets with a broad spectrum of activity. Hence, the risk for developing resistance should be low. However, concerns have been raised that their growing use may result...

Within the past decade nephelometric methods of analysis have become increasingly popular in biochemical work, so that at present a nephelometer has come to be counted an indispensable piece of apparatus in every well equipped laboratory. Nephelometry has however the serious disadvantage that, as was first pointed out by Richards and Wells,i the amount of light reflected is not strictly proport...