نتایج جستجو برای: ag positive
تعداد نتایج: 698472 فیلتر نتایج به سال:
BACKGROUND In this study, we evaluated the performance of Elite microplate analyzer (Bio-Rad Laboratories, France) and the related assays (ULTRA line) for the detection of hepatitis B virus (HBV), hepatitis C virus (HCV) and human immunodeficiency virus (HIV). METHODS Seroconversion panels, HBsAg positive/HBsAg negative (n=99/n=1,422), anti-HCV positive/negative (n=97/n=1,670), and anti-HIV p...
Purpose The aim of this study was to evaluate the relationship between initial probing depth (IPD) and changes in clinical parameters following non-surgical periodontal treatment (NPT) in chronic periodontitis patients. Subjects and Methods A total of 1672 periodontal pockets having 3mm≤IPD≤9mm of depth in 15 chronic periodontitis patients were included. NPT consisting of oral hygiene instruc...
BACKGROUND The presence of an infected family member significantly increases the risk of HBV transmission, but many socio-demographic and viral characteristics of family members affect the transmission rate. OBJECTIVES In this study, we have used data mining techniques to investigate the impact of different variables in intrafamilial transmission of HBV infection. PATIENTS AND METHODS demog...
PURPOSE To seek a high sensitive and convenient method for early diagnosis of gastric cancer by testing MG7-Ag in serum of gastric cancer patients and some other control groups using a convenient ELISA method. EXPERIMENT DESIGN The expression of serum MG7-Ag was detected in 116 preoperative gastric cancer patients, 63 postoperative gastric cancer patients, 78 precancerous lesion patients, 50 ...
Objective: As an alternative to RT-qPCR assays used in the diagnosis SARS-CoV-2, antigen-detecting rapid diagnostic tests (Ag-RDTs) are available for qualitative detection of SARS-CoV-2 nasopharyngeal swab samples. The aim this study was assess accuracy and reliability Ag-RDTs as a method detecting positive cases within given population.
 Methods: In first phase investigation, 357 samples ...
introduction: viral hepatitis is one of the causes of premature death in world peoples, according to who reports, five percentage of people are carrier, lethal from this disease is 1%, therefore about 1-1.5 million people each year die from complications of this disease. this disease varies from an acute to chronic illness. the aim of this study was to determine the level of anti-hbs ag (hepati...
To investigate the influence of pH on the size and distribution of silver nanoparticles (Ag-NPs) as well as the antibacterial activity and catalytic performance of rice straw/silver nanocomposites (RS/Ag-NCs), Ag-NPs were synthesized on the surface of rice straw (RS) with various percentages of Ag-NPs (1.0, 5.0, 10.0, and 20.0 wt.%) under different temperatures and diverse pH values. The ultrav...
0022-0728/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.jelechem.2009.01.002 * Corresponding author. Tel.: +1 512 471 3761; fax E-mail address: [email protected] (A.J. Bard) The viability and activity of HeLa cells were probed using scanning electrochemical microscopy (SECM). The feedback generated by HeLa cells during scanning depends on the electrochemical mediator. Living HeLa c...
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