نتایج جستجو برای: شیگلا فلکسنری 2a
تعداد نتایج: 24769 فیلتر نتایج به سال:
A HeLa cell clone (2A7d) that inducibly expresses the gene for poliovirus protease 2A (2A(pro)) under the control of tetracycline has been obtained. Synthesis of 2A(pro) induces severe morphological changes in 2A7d cells. One day after tetracycline removal, cells round up and a few hours later die. Poliovirus 2A(pro) cleaves both forms of initiation factor eIF4G, causing extensive inhibition of...
It is known that for a prime p ? = 2, there the following natural description of homology algebra an Abelian group H*(A, ????p) ? ?(A/p)??(pA), and finitely generated groups cohomology ?((A/p)?)?Sym((pA)?). proved are no such descriptions “depending” on A/2 2A only. Moreover, ????2) ????2), A/2, 2A, linear map $$ \overline{\beta} : ? presented. also filtration by subfunctors Hn(A, whose quotien...
سابقه و هدف: باکتری شیگلا، شایع ترین عامل اسهال بوده و تاکنون واکسن موثری علیه آن یافت نشده است. پروتئین ipad و انتروتوکسین شیگلا یاb subunit of shiga toxin (stxb) نقش مهمی در تهاجم، بیماری زایی و ایجاد عفونت توسط شیگلا دارد. برای بررسی ایمنی زایی هر یک از پروتئین های ممزوج ipad و stxb می توان از دو مدل حیوانی موش و خوکچه هندی استفاده نمود و نقش هر یک از پروتئین های نوترکیب ipad-stxb را در تهیه...
In this study, we investigated the hypothesis of agonist-directed trafficking of receptor signaling for the alpha(2A)-adrenergic receptor (alpha(2A)-AR). alpha(2A)-ARs couple to both G(s) and G(i) to stimulate or inhibit adenylyl cyclase activity. Chinese hamster ovary-K1 cell lines expressing the porcine alpha(2A)-AR at high (alpha(2A)-H) and low (alpha(2A)-L) levels were used to estimate the ...
چکیده : ابزارهای بیوتکنولوژی و تکنیک های آن راهگشای تحقیقات جدید برای درک چگونگی عملکرد بدن های سالم می باشد. شناخت پایه ملکولی سلامت و بیماری منجر به کشف روش های جدید برای درمان و جلوگیری از بیماری می شود. استفاده از گیاهان داروئی از زمان های قدیم تا به امروز توسط عامه مردم به طور گسترده رایج بوده است؛ بنابراین مطالعه اثرات سیتوتوکسیک ، ژنوتوکسیک(ناهنجاری های کروموزومی) و ضدمیکروبی آنها ام...
Activation of the A(2A) adenosine receptor (A(2A)R) has been shown to be cardioprotective. We hypothesized that A(2A)R overexpression could protect the heart from adriamycin-induced cardiomyopathy. Transgenic (TG) mice overexpressing the A(2A)R and wild-type mice (WT) were injected with adriamycin (5 mg.kg(-1).wk(-1) ip, 4 wk). All WT mice survived adriamycin treatment while A(2A)R TG mice suff...
The adenosine A(2A) receptor (A(2A)R) is highly concentrated in the striatum, and a therapeutic target for Parkinson's disorder (PD) and Huntington's disease. High affinity and selective radiolabeled A(2A)R antagonists can be important research and diagnostic tools for PD. Positron Emission Tomography (PET) can play an important role by measuring radiolabeled A(2A) antagonists non-invasively in...
BACKGROUND Developing retinas display retinal waves, the patterned spontaneous activity essential for circuit refinement. During the first postnatal week in rodents, retinal waves are mediated by synaptic transmission between starburst amacrine cells (SACs) and retinal ganglion cells (RGCs). The neuromodulator adenosine is essential for the generation of retinal waves. However, the cellular bas...
Adenosine A(2A) and dopamine D(2) receptors (A(2A) and D(2)) associate in homo- and heteromeric complexes in the striatum, providing a structural basis for their mutual antagonism. At the cellular level, the portion of receptors engaging in homo- and heteromers, as well as the effect of persistent receptor activation or antagonism on the cell oligomer repertoire, are largely unknown. We have us...
The adenosine A(2A) receptor (A(2A) R) is a potential drug target for the treatment of Parkinson's disease and other neurological disorders. In rodents, the therapeutic efficacy of A(2A) R modulation is improved by concomitant modulation of the metabotropic glutamate receptor 5 (mGluR5). To elucidate the anatomical substrate(s) through which these therapeutic benefits could be mediated, pre-emb...
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