scholarly journals Clinical laboratory evaluation of SELECA-VSP for serum protein fractionation by use of automated electrophoresis system (AES320).

2007 ◽  
Vol 51 (2) ◽  
pp. 125-128 ◽  
Author(s):  
Hiroko Watanabe ◽  
Aya Sugiura ◽  
Masato Maekawa
Keyword(s):  
Serum Protein ◽  
Clinical Laboratory ◽  
Laboratory Evaluation ◽  
Protein Fractionation ◽  
Electrophoresis System

Evaluation of a Cellulose-Acetate Electrophoresis System for Serum Protein Fractionation

1965 ◽  
Vol 11 (10) ◽  
pp. 937-942 ◽  
Author(s):  
Alex Kaplan ◽  
John Savory
Keyword(s):  
Cellulose Acetate ◽  
Serum Protein ◽  
Blood Donors ◽  
Serum Proteins ◽  
Normal Values ◽  
Protein Fractionation ◽  
Cellulose Acetate Electrophoresis ◽  
Cellulose Acetate Membranes ◽  
Control Serum ◽  
Electrophoresis System

Abstract A rapid system for the quantitative fractionation of serum proteins by electrophoresis on cellulose-acetate membranes was evaluated and found to be quite precise. The reproducibility (coefficient of variation) of the routine fractionation of a control serum carried out 40 times during a 15-week period was 2.4% for albumin and 14.2, 6.0, 6.1, and 5.2%, respectively, for the α1-, α2-, β-, and γ-globulin fractions. Normal values are given for serum protein fractions (specimens from nonprofessional blood donors) obtained by cellulose acetate electrophoresis.

Study of Toll-like Receptor 3 Gene Polymorphism as a Novel Risk Factor for HCV-related Hepatocellular Carcinoma in Egypt

2020 ◽  
Vol 20 (5) ◽  
pp. 382-389 ◽  
Author(s):  
Shimaa EL-Sharawy ◽  
Osama El- Sayed Negm ◽  
Sherief Abd-Elsalam ◽  
Hesham Ahmed EL-Sorogy ◽  
Mona Ahmed Helmy Shehata
Keyword(s):  
Hepatocellular Carcinoma ◽  
Risk Factor ◽  
Gene Polymorphism ◽  
Clinical Laboratory ◽  
Treatment Options ◽  
Laboratory Evaluation ◽  
Toll Like Receptor ◽  
Focal Lesions ◽  
Tlr3 Gene ◽  
Cirrhotic Patients

Background & Aims: Hepatocellular carcinoma (HCC) is a highly aggressive cancer with few treatment options. Toll-like receptor 3 (TLR3) plays a key role in innate immunity and may affect the development of cancers. This study aimed to investigate the association between TLR3 gene polymorphism and HCV-related hepatocellular carcinoma in Egypt. Methods: This work was conducted on 70 individuals; fifty HCV cirrhotic patients were included in two groups; with HCC (30 patients) and without HCC (20 patients) compared with a group of 20 apparently healthy controls. All of the studied individuals underwent clinical-laboratory evaluation. TLR3 gene single-nucleotide polymorphism (SNP) (+1234C/T) was tested by polymerase chain reaction- restriction fragment length polymorphism. Results: This study reported that the prevalence of TLR3 +1234TT genotype was significantly increased in cirrhotic patients with HCC than without HCC, while it was not detected at all among the controls. When analyzing the TLR3 SNP +1234C/T with different clinical parameters in HCC patients, there was a significant association between+1234C/T SNP; namely TT genotype and each of the hepatic focal lesions᾽ number, size and the patients᾽ higher Okuda and BCLC stages. No association could be detected between TLR3 SNP and the age, sex, Child-Pugh grades, MELD score or AFP of the studied HCC cases. Conclusion: TLR3 gene SN P +1234C/T could be a novel risk factor for the HCV-related HCC among the Egyptian population.

scholarly journals Human serum protein fractionation by gel filtration

1970 ◽  
Vol 118 (5) ◽  
pp. 869-873 ◽  
Author(s):  
T. Freeman ◽  
J. Smith
Keyword(s):  
Human Serum ◽  
Serum Protein ◽  
Serum Proteins ◽  
Gel Filtration ◽  
Protein Fractionation ◽  
Logical Approach ◽  
Complex Protein ◽  
Human Serum Protein ◽  
Immunological Technique ◽  
Current Terminology

The development of a quantitative immunological technique using polyvalent antiserum permits a more logical approach to the fractionation of complex protein mixtures. In this study whole serum was separated by conventional gel filtration and the fractions obtained were analysed. This demonstrates over 60 immunologically distinct serum proteins. Because the current terminology is inadequate to describe this number of proteins, a temporary numerical nomenclature has been used.

Pre-clinical laboratory evaluation of the new ‘AF’ arterial line filter range

Perfusion ◽  
2010 ◽  
Vol 25 (4) ◽  
pp. 267-276 ◽  
Author(s):  
Gemma Yarham ◽  
John Mulholland
Keyword(s):  
Pressure Drop ◽  
Surface Area ◽  
Heart Surgery ◽  
Clinical Laboratory ◽  
Open Heart Surgery ◽  
Global Market ◽  
Individual Characteristics ◽  
Laboratory Evaluation ◽  
Arterial Line ◽  
Experimental Conditions

Introduction: The presence of emboli was recognised relatively early in the history of open heart surgery. The emboli produced during cardiopulmonary bypass have the predisposition to distribute into, and ultimately obstruct, microvessels of all tissues. The Sorin Group has recently developed a new range of arterial line filters. Before the Sorin AF range of filters was released for pre-launch clinical trials, our group performed in vitro laboratory testing of the AF range against a selection of commercially available filters on the global market. Results: The Sorin AF620 and AF640 demonstrate both the smallest prime volume and smallest surface contact area (92ml and 290cm2, respectively).The results of the GME Handling Efficiency experiments ranged by 39.6%, from 95.9% to 56.3%. In terms of an air bolus handling, the results of the Limit Bolus experiment ranged by 97ml, from 147.5ml down to 50ml. The pressure drop across all the filters was measured under steady state experimental conditions. All of the above investigations were considered against surface area and prime volume. Conclusion: It is clear from the results that some commercially available arterial line filters perform better than others, not only in overall performance, but also with regard to individual characteristics. Evaluating arterial line filters for hospital-specific use has to balance pressure drop, surface area, micro air handling, prime volume and gross air handling; all points need to be considered. In the AF620 and AF640, Sorin boast that they are the two smallest prime and smallest surface area filters commercially available on the global market. The Sorin AF filter range performs well in all of the areas we investigated and will be a competitive option for centres, irrespective of which characteristics they use to evaluate and select their arterial line filter.

The integrated blood-collection system as a vehicle into complete clinical laboratory automation

1991 ◽  
Vol 37 (9) ◽  
pp. 1548-1556 ◽  
Author(s):  
R L Columbus ◽  
H J Palmer
Keyword(s):  
Clinical Laboratory ◽  
Integrated System ◽  
Diagnostic Instrument ◽  
Laboratory Evaluation ◽  
Blood Collection ◽  
Sample Collection ◽  
Collection System ◽  
Patient Identification ◽  
Plasma Extraction ◽  
Derivatives Of

Abstract A rationale is offered and methodology illustrated for integrating the fundamental steps involved in the collection and processing of blood for laboratory evaluation. The approach taken in the development of these concepts and components greatly extends the possibilities of laboratory systems integration without upsetting established modalities. A prototype design of the integrated blood-collection system integrates blood collection, cellular separations, sample transfer to stable storage without chemical mediators, and sample presentation for chemical analysis (e.g., precision metering) while preserving patient identification. A sophisticated, multi-chambered blood-collection container is the site of all blood sample processing and transfer steps. This device is supported by a compact, robotic centrifuge of unique design and a transfer mechanism to facilitate sample delivery for analysis within a diagnostic instrument. The confluence of these individual components into a single integrated system provides the means to completely automate the processing of blood samples, after sample collection, eliminating all manual transfer steps and any external exposure of blood interfaces outside the diagnostic instrument. Configurational derivatives of the Integrated Blood-Collection System offer choice of skin or venipuncture procedure, rapid plasma extraction for micro- or macro-collected volumes, and sample delivery by either aspiration or direct metering of discrete 10-microL samples from the collection container. The skin-puncture configuration provides the opportunity within a single device to collect and process up to 500 microL of sample by capillarity from a skin prick.

Comparative pharmacokinetics and a clinical laboratory evaluation of intravenous acetaminophen in Beagle and Galgo Español dogs

2019 ◽  
Vol 46 (2) ◽  
pp. 226-235 ◽  
Author(s):  
Juan Manuel Serrano-Rodríguez ◽  
Carles Mengual ◽  
Setefilla Quirós-Carmona ◽  
Julio Fernández ◽  
Juan Manuel Domínguez ◽  
...  
Keyword(s):  
Clinical Laboratory ◽  
Laboratory Evaluation ◽  
Intravenous Acetaminophen

scholarly journals Nitazoxanide in Treatment of Helicobacter pylori: a Clinical and In Vitro Study

2003 ◽  
Vol 47 (12) ◽  
pp. 3780-3783 ◽  
Author(s):  
Yvonne Guttner ◽  
Helen M. Windsor ◽  
Charlie H. Viiala ◽  
Leon Dusci ◽  
Barry J. Marshall
Keyword(s):  
Helicobacter Pylori ◽  
Clinical Laboratory ◽  
Single Agent ◽  
Eradication Therapy ◽  
In Vitro Study ◽  
Laboratory Evaluation ◽  
Microbiological Characteristics ◽  
String Test ◽  
H Pylori

ABSTRACT Nitazoxanide (NTZ) is an antibiotic with microbiological characteristics similar to those of metronidazole but without an apparent problem of resistance. The aim of this study was the prospective evaluation of NTZ given as a single agent in the treatment of Helicobacter pylori infection. Twenty culture-positive patients with dyspepsia who had previously failed at least one course of H. pylori eradication therapy were enrolled. Subjects received 1 g of NTZ twice daily for 10 days. The safety and tolerability of the drug were assessed by physical examination, monitoring of adverse events, and clinical laboratory evaluation. Urea breath tests (UBTs) were performed 6 weeks posttreatment. H. pylori was isolated from UBT-positive patients by the string test or endoscopy with biopsy, and the MICs for these isolates were compared to those for isolates obtained pretherapy. The levels of tizoxanide, the active deacylated derivative of NTZ, were measured in blood, saliva, and tissue from two patients during treatment. The UBT results were positive for all 20 patients after completion of NTZ therapy. The MIC results demonstrated that the NTZ susceptibilities of none of the strains isolated from the patients posttherapy had changed significantly. No major adverse reactions were observed, but frequent minor side effects were observed. In conclusion, NTZ did not eradicate H. pylori when it was given as a single agent.

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