نتایج جستجو برای: signal pathway

تعداد نتایج: 684562  

2017
Maarten Altelaar

Cell signaling pathways are sequences of biochemical reactions that propagate an input signal, such as a hormone binding to a cell-surface receptor, into the cell to trigger a reactive process. Assessment of pathway activities is crucial for determining which pathways play roles in disease versus normal conditions. To date various pathway flow/perturbation assessment tools are available, howeve...

Journal: :gastroenterology and hepatology from bed to bench 0
mona zamanian azodi mostafa rezaei tavirani sara rahmatirad hadi hasanzadeh majid rezaei-tavirani samaneh sadat seyyedi

aim: this study is aimed to elicit the possible correlation between breast and colon cancer from molecular prospectiveby analyzing and comparing pathway-based biomarkers.background: breast and colon cancer are known to be frequent causes of morbidity and mortality in men and womenaround the world. there is some evidence that while the incident of breast cancer in young women is high, it is repo...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
a qaderi m omidi a etminan a oladzad c ebrahimi mr dehghani mashkani

taxol is used to treatment of variety cancers including ovarian, breast, lung, head and neck carcinomas and the aids-related karposi’s carcinoma, and was originally obtained from bark of taxus brevifolia. however the amount of extracted taxol from taxus is extremely low and cannot be considered as a suitable commercial source and it has led to studies for finding new sources of taxol. in 1998, ...

Journal: :physiology and pharmacology 0
vahid khori golestan cardiovascular research center, golestan university of medical sciences, gorgan, iran samaneh naeimipour department of biology, faculty of basic science, azad university science & research center, tehran ali-mohammad alizadeh cancer research center, tehran university of medical sciences, tehran, iran mona pourabouk golestan cardiovascular research center, golestan university of medical sciences, gorgan, iran fakhri badaghabadi golestan cardiovascular research center, golestan university of medical sciences, gorgan, iran maryah rajaei golestan cardiovascular research center, golestan university of medical sciences, gorgan, iran

introduction: intranodal pathways of atrioventricular (av) node play a vital role in the delay of conduction time in response to various atrial inputs. the present study was aimed to determine the frequency-dependent electrophysiological properties of concealed slow pathway according to a functional model of isolated rabbit atrioventricular node preparation after fast pathway ablation. methods:...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند 1388

a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...

Journal: :iranian journal of immunology 0
masoumeh varedi department of physiology, medical school, shiraz university of medical sciences, shiraz, iran

interferons (ifns) are a family of small regulatory glycoproteins that play a central role in the defense against viral infections. although ifns have been initially discovered as antiviral factors, today they are known as an integral part of the cytokine network that affect a wide range of biological processes. ifns exert their pleiotropic effects through their multisubunit cell surface recept...

Journal: :Proceedings of the National Academy of Sciences 2008

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