Search results for: Human Serum Defibrinated
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The establishment of a WHO Reference Reagent for anti-malaria (Plasmodium falciparum) human serum.At a World Health Organization (WHO) sponsored meeting it was concluded that there is an urgent need for a reference preparation that contains antibodies against malaria antigens in order to support serology studies and vaccine development. It was proposed that this reference would take the form of a lyophilized serum or plasma pool from a malaria-endemic area. In response, an immunoassay standard, comprising defibrinated human plasma has been prepared and evaluated in a collaborative study.
1706 related Products with: The establishment of a WHO Reference Reagent for anti-malaria (Plasmodium falciparum) human serum.Mouse Anti-Plasmodium fal Human anti-parainfluenza Mouse Anti-Plasmodium fal anti-Human Serum Albumin MOUSE ANTI HUMAN CD15, Pr Mouse Anti-P. falciparum MOUSE ANTI HUMAN CD19 RPE MOUSE ANTI HUMAN CD15, Pr Anti C Reactive Protein A MOUSE ANTI BOVINE ROTAVIR Anti AGO2 Human, Monoclon Anti AGO2 Human, Monoclon
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Development of a serum-free liquid medium for Bartonella species.The genus Bartonella comprises numerous species with at least 13 species pathogenic for humans. They are fastidious, aerobic, Gram negative, and facultative intracellular bacteria which cause a variety of human and non-human diseases. This study focused on the development of a serum-free liquid medium for culture of Bartonella species. Some liquid media are available commercially but all of them use undefined supplements such as fetal calf serum or defibrinated sheep blood. Our intention was to create a reproducible liquid medium for Bartonella species that can simply be prepared. We tested several supplements that could potentially support the growth of Bartonella species. Slight growth improvement was achieved with glucose and sucrose. However, hemin in particular improved the growth rate. At a temperature of 37 °C, a CO2 concentration of 5 %, a humidified atmosphere, and the use of the supplements glucose, sucrose, and hemin, we developed a medium that does not need serum as an undefined supplement any more. In conclusion, the newly developed medium supports growth of Bartonella species equal to the commercially available media but with the advantage that it has a serum-free formulation. It can be prepared fast and easy and is a useful tool in studying these bacteria.
Bovine Serum Albumin (BSA PERMANENT AQUEOUS MOUNTIN MOUSE ANTI BOVINE ROTAVIR MOUSE ANTI BORRELIA BURGD succinate-CoA ligase, GDP formin-like 1 antibody So succinate-CoA ligase, ADP Primary antibody Caspase Primary antibody FLIP An Triglyceride Assay Kit Li NATIVE HUMAN PROLACTIN, P RABBIT ANTI GSK3 BETA (pS
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The 3rd International Standard for serum IgE: international collaborative study to evaluate a candidate preparation.The measurement of serum IgE aids in the diagnosis and management of atopic allergic disease and hyper-IgE immunodeficiency syndromes. The 2nd World Health Organization (WHO) International Reference Reagent (IRR) for serum IgE (75/502; 5000 IU/ampoule), is widely used to calibrate assays for serum IgE. Exhaustion of stocks of the 2nd IRR necessitated the production of a replacement preparation and its evaluation in an international collaborative study to determine its suitability to serve as the 3rd International Standard (IS) for serum IgE.
1566 related Products with: The 3rd International Standard for serum IgE: international collaborative study to evaluate a candidate preparation.FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu Canine serum albumin lyo Canine serum albumin lyo Amyloid P component (seru Toxoplasma gondii MIC 3 r Toxoplasma gondii P24 (GR
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Effect of blood sample type on the measurement of advanced oxidation protein products as a biomarker of inflammation and oxidative stress in hemodialysis patients.Advanced oxidation protein products (AOPP) is widely used as a uremic biomarker, especially for cardiovascular disease. However, it has not been determined whether it is better to measure AOPP in plasma or serum. In this cross-sectional study, which included 102 patients undergoing maintenance hemodialysis, fibrinogen-free serum and defibrinated plasma samples were prepared. AOPP levels from fibrinogen-free samples displayed a stronger correlation with myeloperoxidase activity and levels of C-reactive protein, interleukin-6 and tumor necrosis factor-alpha, as well as prevalent cardiovascular disease, than AOPP levels obtained from plasma samples. These results demonstrated that fibrinogen interferes with the measurement of AOPP.
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[The role of Turkish physicians in the vaccination against typhus during the years of World War I].During the years of World War I, several severe typhus epidemics were seen in Erzurum and nearby cities. A total of 164 health officers, 125 of whom were physicians, struggled against the epidemic in the region but also they lost their lives due to typhus. Vaccination against typhus was one of the means of fighting the epidemic. However, there were some claims that a small group of Turkish physicians injected typhus-contaminated serum into Armenian civilians during World War I, and that this should be accepted as a form of biological warfare against Armenian civilians. The purpose of this article is to set out how, by whom, and on whom, and under what conditions the typhus vaccination was applied in order to reveal the truth in terms of the evidence found in historical documents. The typhus vaccine was prepared from blood taken from febrile patients affected by the disease. After the blood of the patients were defibrinated and inactivated at 60 degrees C for an hour, it was used. As the amount of blood needed to prepare the vaccine was so great, the amount of available vaccine was always insufficient to meet the demand. Hence, the prepared vaccine was only applied to those which had the higher risk of contracting typhus such as physicians and nurses. The vaccine prepared by The Third Army Health Commander Dr. Tevfik Salim was first applied to nine officers, five of whom were physicians, and among whom were Dr. Haydar Cemal and Dr. Salahattin on March 28, 1915 in Hasankale, Erzurum. Furthermore, the same vaccine was applied to people in the vicinity by Dr. Alaattin in Erzurum, Dr. Abdulhalim Asim in Bayburt, Dr. Izak in Sivas and Dr. Mihran in Hasankale. Ali Ihsan Sabis and Fevzi Cakmak, who were high ranking officers, were among those who volunteered to have the vaccination. The Third Army Health Commander Dr. Tevfik Salim ordered that the vaccine should not be applied without blood inactivation. Despite this order, Dr. Hamit Osman, who had a mental illness, applied the vaccination without inactivating the blood to some people. Among those were physicians of the Red Crescent Hospital together with soldiers who were nursing in the hospitals in Erzincan. Dr. Hamdi Suat inactivated the blood by leaving it at -16 degrees C for 24-48 hours, and instead of giving a single dose, he applied three-doses with 3-day-intervals, followed by a one more dose, which he called "the vaccine for absolute immunization" to the same people after 10-23 days. This "vaccine for absolute immunization" was actually typhus-contaminated blood which had not been inactivated. It should be noted that he injected himself with the same form of vaccine. In his article published in German in 1916 and in Turkish in 1917, he stated that he injected "the vaccine for absolute immunization" to some subjects 'condemned to death'. Dr. Haydar Cemal claimed, in a newspaper dated December 23, 1918, that the people reported as subjects 'condemned to death' were indeed Armenians, and that the innocent Armenians marked out for deportation were inoculated with the blood of typhus fever patients, and that he eyewitnessed all these events. As a result of his claims, the Interior Ministry demanded an immediate investigation, and at the end of that investigation it was understood that Dr. Haydar Cemal and Dr. Hamdi Suat had never worked together in Erzincan at the time Dr. Haydar Cemal claimed. All the claims were refuted by the investigating committee and nobody was charged. During a severe typhus epidemic, Turkish physicians injected the typhus vaccine for the purpose of "saving a life from the fire". The typhus vaccine was prepared using the available scientific knowledge of the time. No racial or religious discrimination against the people vaccinated had been proved. According to the sources, the claim that some Turkish physicians used the blood of patients with typhus as a means of biological warfare does not reflect the historical truth.
2497 related Products with: [The role of Turkish physicians in the vaccination against typhus during the years of World War I].Thermal Shaker with cooli FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu Multiple organ tumor tiss MultiGene Gradient therm BACTERIOLOGY BACTEROIDES TCP-1 theta antibody Sour Recombinant Thermostable
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An acquired inhibitor that produced a delay of fibrinopeptide B release in an asymptomatic patient.An asymptomatic, 29-year-old woman was referred to our hospital before surgery because in the basic study of hemostasis she showed a prolonged thrombin time (TT) and a normal reptilase time (RT). She had not received any anticoagulants so, to account for these abnormal results the presence of an inhibitor or a dysfibrinogenemia was suspected. A 1:1 mixture of the patient's plasma with control plasma did not correct the TT. Dysfibrinogenemia was excluded because the defibrinated plasma retained the inhibitory activity when mixed with normal plasma. When 0.02 mg/ml of Protamine Sulphate (a concentration that neutralizes 1 U/mL of heparin in normal plasma) was added to the patient's plasma, the inhibitory activity did not disappear. IgG from the patient and from normal serum was isolated. The patient's IgG was able to prolong the TT of a normal plasma and of a purified fibrinogen. The patient IgG did not impair the catalytic activity of thrombin, because no difference was observed in the hydrolysis of S-2238 by 1 U NIH human thrombin with normal or patient IgG. The time course of the thrombin-mediated fibrinopeptide-release from normal fibrinogen with the patient's IgG, showed a delay in the fibrinopeptide B (FPB) release without affecting the fibrinopeptide A (FPA) release. This patient has an IgG antibody that delays fibrinopeptide B release of fibrinogen.
2263 related Products with: An acquired inhibitor that produced a delay of fibrinopeptide B release in an asymptomatic patient.Rabbit Anti-G protein alp anti-Diazepam Binding Inh anti-Diazepam Binding Inh Rabbit Anti-Human Bcl-2 I Anti-C1-Esterase Inhibito Anti C1 Esterase Inhibito Brain-Specific Angiogenes Brain Specific Angiogenes Anti C Reactive Protein A anti GSK3 Beta IgG2a (mon anti HSV (II) gB IgG1 (mo anti HCMV IE pp65 IgG1 (m
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Media- and method-dependent variations in minimal inhibitory concentrations of antiplaque agents on oral bacteria.To determine minimal inhibitory concentrations (MICs) and the percentage of nonsusceptible bacteria-- those still cultivable above a threshold concentration--in human supragingival dental plaque and saliva for antiplaque/antimicrobial agents including triclosan (TCS) and trichlorocarbanilide (TCC), and a new potential antimicrobial, 2-t-butyl-5-(4-t-butylphenyl)-phenol (DTBBP).
2952 related Products with: Media- and method-dependent variations in minimal inhibitory concentrations of antiplaque agents on oral bacteria.Human Migration Inhibitor Recombinant Human WNT Inh Recombinant Human WNT Inh Recombinant Human WNT Inh baculoGROW insect cell me Nycodenz, non ionic, non Rabbit Anti-FGF3 Oncogene Rabbit Anti-Pig Gastrin I EnzyChrom™ Kinase Assay Inhibitory Mouse Monoclon Inhibitory Mouse Monoclon Inhibitory Mouse Monclona
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Comparability of method results and performance in a national external quality assessment scheme between 1993 and 2003 using thyroid associated analytes as examples.Six thyroid analytes (free and total triiodothyronine and thyroxine, thyrotropin and thyroglobulin) have been followed up over a 10 year period in a national external quality assessment scheme (EQAS) organised by the Institute for Standardisation and Documentation in the Medical Laboratory (INSTAND). I. The following points were observed: II. The introduction of samples with properties similar to patient serum (filtered, recalcified defibrinated plasma without stripping) improved performance and inter-method comparability for the free thyroid hormones. III. In general, the performance in EQAS has improved over the past decade, an exception being thyroglobulin, where precision has improved at the expense of inter-method comparability. IV. Regular statistical analysis of EQAS data allows adjustment of target ranges to be made when necessary. V. Analytes which are not dependent on binding proteins--thyrotropin and the total thyroid hormones--give rise to similar performance when stripped and spiked plasma or recalcified non-stripped and spiked plasma is used as sample. VI. Whereas certain analytes have had a relatively constant number of participants over the past decade (total thyroid hormones), others have shown a drastic increase (free thyroxine from 67 to 620; thyrotropin from 295 to 724) reflecting the medical demand for the analytes.
2148 related Products with: Comparability of method results and performance in a national external quality assessment scheme between 1993 and 2003 using thyroid associated analytes as examples.Bovine Androstenedione,AS EnzyChrom™ Kinase Assay Androgen Receptor (Phosph Androgen Receptor (Phosph EMAP-II Inhibitor Z-ASTD- EMAP-II Inhibitor Z-ASTD- EMAP II Inhibitor Z ASTD EMAP II Inhibitor Z ASTD Amplite™ Fluorimetric H Amplite™ Intracellular Amplite™ Fluorimetric P Amplite™ Fluorimetric A
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Comparability of method results and performance in a national external quality assessment scheme between 1993 and 2003 using thyroid associated antibodies as examples.Four thyroid antibodies (antibodies to microsomes [MAb], thyroid peroxidase [anti-TPO], thyroglobulin [anti-Tg] and TSH-receptor [TRAB, THYBIA]) have been followed up over a 10-year period in a national external quality assessment scheme (EQAS) organised by the Institute for Standardisation and Documentation in the Medical Laboratory (INSTAND e.V.). The following points were observed: I. The introduction of samples with properties similar to patient serum (filtered, recalcified defibrinated plasma without stripping) improved performance and inter-method comparability for thyroid antibodies. II. Regular statistical analysis of EQAS data allows adjustment of target ranges to be made when necessary. III. There are large inter-method variations in reporting, both on qualitative and quantitative results. IV. The samples often gave rise to different constellations of antibodies, which were kit-dependent. V. Despite use of international reference preparations, there was no numerical comparability between quantitative methods for the same analyte. In general, the performance in EQAS for thyroid antibodies has improved over the past decade. There is still a real need for standardisation in the field of thyroid antibody analysis.
2489 related Products with: Comparability of method results and performance in a national external quality assessment scheme between 1993 and 2003 using thyroid associated antibodies as examples.Bovine Androstenedione,AS Rabbit Anti-Human Androge Goat Anti-Human Androgen Rabbit Anti-Rat Androgen EnzyChrom™ Kinase Assay Goat Anti-Human AS160 TBC Goat Anti-Human ASF1A HSP Goat Anti-Human, Mouse As Goat Anti-Human ASRGL1 AL Goat Anti- Ascl1a (zebraf Goat Anti-Human, Mouse, R HIV1 integrase antibody,
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Evaluation of a cefoxitin 30 microg disc on Iso-Sensitest agar for detection of methicillin-resistant Staphylococcus aureus.To evaluate the performance of a cefoxitin 30 microg disc on Iso-Sensitest agar, using a semi-confluent inoculum and overnight incubation at 35-36 degrees C, for detection of methicillin-resistant Staphylococcus aureus (MRSA).
1876 related Products with: Evaluation of a cefoxitin 30 microg disc on Iso-Sensitest agar for detection of methicillin-resistant Staphylococcus aureus.MOUSE ANTI BORRELIA BURGD Acebutolol Discontinued. 2-Amino-6-formylpteridin- Staphylococcus Aureus Rea Mouse Anti-Staphylococcus Mouse Anti-Staphylococcus Mouse Anti-Staphylococcus Mouse Anti-Staphylococcus EnzyChrom™ Acetylcholin EnzyChrom™ Free Fatty A EnzyChrom™ Lactose Assa Cat Tissue cDNA, Adult Ti
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