نتایج جستجو برای: acid neutralizing
تعداد نتایج: 764864 فیلتر نتایج به سال:
Rapid antigenic evolution in the influenza A virus hemagglutinin precludes effective vaccination with existing vaccines. To understand this phenomenon, we passaged virus in mice immunized with influenza vaccine. Neutralizing antibodies selected mutants with single-amino acid hemagglutinin substitutions that increased virus binding to cell surface glycan receptors. Passaging these high-avidity b...
Broadly neutralizing antibodies are not commonly produced in HIV-1 infected individuals nor by experimental HIV-1 vaccines. When these antibodies do occur, it is important to be able to isolate and characterize them to provide clues for vaccine design. CAP206 is a South African subtype C HIV-1-infected individual previously shown to have broadly neutralizing plasma antibodies targeting the enve...
قارچ ها به عنوان یکی از مهمترین عوامل بیماریزای گیاهی، منبع اصلی از متابولیت های ثانویه بیواکتیو هستند، و از اهمیت قابل توجهی در فعل و انفعالات زیست محیطی برخوردار می باشند از جمله متابولیت ها می توان آنتی بیوتیک ها، توکسین ها و آنزیم ها را نام برد. در این پژوهش شناسایی متابولیت های ثانویه تولید شده در 21 گونه قارچی با کمک gc – ms انجام گردید. نتایج حاصل از بررسی قابلیت ضد باکتریایی، ضد قارچی، ...
Most human immunodeficiency virus type 1 (HIV-1)-infected individuals develop an HIV-specific neutralizing antibody (NAb) response that selects for escape variants of the virus. Here, we studied autologous NAb responses in five typical CCR5-using progressors in relation to viral NAb escape and molecular changes in the viral envelope (Env) in the period from seroconversion until after AIDS diagn...
Various HIV-1 env genetic and biochemical features impact the elicitation of cross-reactive neutralizing antibodies in natural infections. Thus, we aimed to investigate cross-neutralizing antibodies in individuals infected with HIV-1 env subtypes B, F1, C or the B/Bbr variant as well as env characteristics. Therefore, plasma samples from Brazilian chronically HIV-1 infected individuals were sub...
background: dengue is a global arboviral threat to humans; causing 390 million infections per year. the availability of safe and effective tetravalent dengue vaccine is a global requirement to prevent epidemics, morbidity, and mortality associated with it. methods: five experimental groups (6 mice per group) each of 5-week-old balb/c mice were immunized with vaccine and placebo (empty plasmid) ...
introduction rabies is a fatal disease and has a threatening risk for the public health. immunosuppression is related to a wide variety of diseases. it is recommended that immunosuppressed patients receive the full post-exposure vaccination, concerning that the immune response may be inadequate. the aim of this study is to determine the level of rabies neutralizing antibody in immunosuppressed ...
BACKGROUND Conserved neutralizing epitopes are considered to be a key role for eliciting broadly neutralizing antibody (NAb). Previously, two conserved neutralizing epitopes of HIV-1 CRF01_AE envelope were identified at amino acid 93-112 of the C1 (C1E) and at 218-239 of the C2 (C2E) regions. To access the potency of antibody directed against conserved epitopes, a monoclonal antibody (MAb) spec...
Abstract Background: Human rabies is preventable by prompt post-exposure prophylaxis. The total number of rabies vaccine doses administered during post-exposure prophylaxis is 5 given on days 0, 3, 7, 14 and 30. The aim of this study was to measure the durability of rabies neutralizing antibody in exposed persons treated 14–17 years ago and to investigate the effect of 2 boosters of rabies v...
This research was conducted to detect corosolic acid, in vitro antioxidant and antidiabetic effect of Prunus padus leaf, also called Bird cherry is a member Rosaceae. It medium-sized tree with obovate, fine serrated leaves white flowers. According the HPLC Chromatogram standard leaf samples displayed peak retention time 9.855 min. Quantitative analysis revealed good concentration acid i.e 8.032...
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