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Papers in Biological Sciences

Miscellaneous papers in Biological Sciences, A

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Papers 1 - 20 of 127,727 in Miscellaneous, A
  1. Eyes of the hoverfly Eristalis tenax are sexually dimorphic such that males have a fronto-dorsal region of large facets. In contrast to other large flies in which large facets are associated with a decreased interommatidial angle to form a dorsal…
  2. The authors review how cancer cells may cooperate in metastasis by means of microenvironmental changes. The main mechanisms underlying this cooperation are clustered migration of cancer cells, extracellular matrix degradation, paracrine loops of…
  3. The hematopoietic cytokine erythropoietin (Epo) exerts cytoprotective effects on several types of neuronal cells both in vivo and in culture. Detailed molecular mechanisms underlying this phenomenon have not been elucidated and even the identity of…
  4. Human cytomegalovirus (HCMV) UL77 gene encodes the essential protein UL77, its function is characterized in the present study. Immunoprecipitation identified monomeric and oligomeric pUL77 in HCMV infected cells. Immunostaining of purified virions…
  5. BACKGROUND: Different immunotherapy approaches for the treatment of cancer and autoimmune diseases are being developed and tested in clinical studies worldwide. Their resulting complex experimental data should be properly evaluated, therefore…
  6. Capsaicin and other vanilloids selectively excite and subsequently desensitize pain-conducting nerve fibers (nociceptors) and this process contributes to the analgesic (and thus therapeutically relevant) effects of these compounds. Such a…
  7. Optimal isoelectric focusing in the alkaline region remains a challenge in two-dimensional gel electrophoresis (2-DE), though various attempts had been made to reduce basic end streaking. The present study reports the application of a novel…
  8. We have developed an array biosensor for the simultaneous detection of multiple targets in multiple samples within 15-30 min. The biosensor is based on a planar waveguide, a modified microscope slide, with a pattern of small (mm2) sensing regions.…
  9. Gram-positive pathogens such as staphylococci contain multiple cell wall-anchored proteins that serve as an interface between the microbe and its environment. Some of these proteins act as adhesins and mediate bacterial attachment to host tissues.…
  10. Protein S-nitrosylation is a reversible post-translational modification of protein cysteines that is increasingly being considered as a signal transduction mechanism. The "biotin switch" technique marked the beginning of the study of the…
  11. We applied a new multi-step protocol to predict the structures of all targets during CASP5, regardless of their potential category. 1) We used diverse fold-recognition (FR) methods to generate initial target-template alignments, which were converted…
  12. Fully enclosed horizontal nanochannels, in a prearranged array on a substrate and with built-in electrical contacts and chemical access regions, were used as growth templates for electrochemical synthesis of conducting polymer nanoribbons. In this…
  13. Niacin is the most effective lipid-modifying agent for raising high-density lipoprotein cholesterol levels, but it also causes cutaneous vasodilation with flushing. To determine the frequency of flushing in clinical trials, as well as to delineate…
  14. The hematopoietic-restricted transcription factor GATA-1 is required for both mammalian erythroid cell and megakaryocyte differentiation. To define the mechanisms governing its transcriptional regulation, we replaced upstream sequences including a…
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