نتایج جستجو برای: ptk

تعداد نتایج: 1449  

Journal: :Journal of refractive surgery 2001
S N Rao P A Majmudar R J Epstein

To the Editor: We read with interest the recent contribution by Dr. William Bond (Bond WI. PRK over incomplete LASIK flap [letter]. J Refract Surg 2000;16:483). We are convinced that some variant of the technique he described, which we think is probably more appropriately referred to as transepithelial PTK/PRK, will eventually become the procedure of choice for the treatment of some patients wh...

Journal: :Cell 1997
Tony Hunter

nucleophosmin (Npm) sequences, which are fused to the entire cytoplasmic domain of Alk, a receptor-like The increasing complexity of growth control pathways PTK (Morris et al., 1994; Fujimoto et al., 1996). The Telhas beenparalleled by the increasingly diverse functions PDGFb receptor fusion, generated by the t(5;12) translouncovered for oncoproteins and tumor suppressor procation in chronic my...

Journal: :Biochimica et biophysica acta 1995
D Y Noh S H Shin S G Rhee

The importance of PLC activation in cell proliferation is evident from the fact that the hydrolysis of PtdIns(4,5)P2 is one of the early events that follow the interaction of many growth factors and mitogens with their respective receptors. However, the importance of PLC activation is not restricted to proliferation; it is one of the most common transmembrane signaling events elicited by recept...

Journal: :American journal of physiology. Renal physiology 2000
W Wang K M Lerea M Chan G Giebisch

The apical small conductance (SK) channel plays a key role in K secretion in the cortical collecting duct (CCD). A high-K intake stimulates renal K secretion and involves a significant increase in the number of SK channels in the apical membrane of the CCD. We used the patch-clamp technique to examine the role of protein tyrosine kinase (PTK) in regulating the activity of SK channels in the CCD...

Journal: :Molecular and cellular biology 1993
A M Shenoy-Scaria L K Gauen J Kwong A S Shaw D M Lublin

Cross-linking of glycosyl-phosphatidylinositol (GPI)-anchored membrane proteins on T cells can trigger cell activation. We and others have shown an association between GPI-anchored proteins and the protein tyrosine kinases (PTKs) p56lck and p59fyn, suggesting a pathway for signaling through GPI-anchored proteins. Studies of decay-accelerating factor (DAF) or CD59 in either the C32 cell line or ...

Journal: :Investigative ophthalmology & visual science 2009
Neil Lagali Johan Germundsson Per Fagerholm

PURPOSE To examine the role of Bowman's layer (BL) on the nature of anterior corneal regeneration after excimer laser phototherapeutic keratectomy (PTK). METHODS A cohort of 13 patients underwent PTK to remove either 7 mum of BL for treatment of primary recurrent corneal erosions (RCE; six patients) or complete BL removal (15-mum ablation) to treat RCE or poor vision secondary to map-dot-fing...

Journal: :American journal of physiology. Cell physiology 2011
Hee Jae Kim Hye Sook Ahn Bok Hee Choi Sang June Hahn

The effects of genistein, a protein tyrosine kinase (PTK) inhibitor, on voltage-dependent K(+) (Kv) 4.3 channel were examined using the whole cell patch-clamp techniques. Genistein inhibited Kv4.3 in a reversible, concentration-dependent manner with an IC(50) of 124.78 μM. Other PTK inhibitors (tyrphostin 23, tyrphostin 25, lavendustin A) had no effect on genistein-induced inhibition of Kv4.3. ...

Journal: :The Journal of biological chemistry 2008
Daohong Lin Erik-Jan Kamsteeg Yan Zhang Yan Jin Hyacinth Sterling Peng Yue Marcel Roos Amy Duffield Joanna Spencer Michael Caplan Wen-Hui Wang

In the present study, we tested the role of CD63 in regulating ROMK1 channels by protein-tyrosine kinase (PTK). Immunocytochemical staining shows that CD63 and receptor-linked tyrosine phosphatase alpha (RPTPalpha) are expressed in the cortical collecting duct and outer medulla collecting duct. Immunoprecipitation of tissue lysates from renal cortex and outer medulla or 293T cells transfected w...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی 1391

بمنظور بررسی قابلیت ترکیب پذیری 9 لاین گوجه فرنگی، لاین های والدینی در قالب طرح تلاقی های دای آلل کامل (9×9)، مورد بررسی قرار گرفتند. در سال دوم نتاج حاصل از تلاقی ها به همراه والدین در قالب طرح بلوک های کامل تصادفی با 3 تکرار مورد بررسی قرار گرفتند. صفات مورد بررسی شامل: صفات تعداد روز تا 50 درصد جوانه زنی بذر، قطر بوته در زمان ظهور اولین گل آذین (میلی متر)، ارتفاع بوته در زمان ظهور اولین گل آ...

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