Jan 31, 2016 - The human T-cell repertoire is complex and is generated by the rearrangement of variable (V), diversity (D) and joining (J) segments on the T-cell receptor (TCR) loci. The T-cell repertoire demonstrates self-similarity in terms clonal frequencies

Amir A. Toor, Abdullah A. Toor, Mohamed Rahmani, Masoud H. Manjili

Dec 17, 1985 - Segments in the leech arise by the proliferation of longitudinally arrayed bandlets of blast cells derived from ten identifiable embryonic stem cells, two M, two N, four O /P and two Q teloblasts. In each bandlet, older blast cells …

Feb 5, 2014 - Recent interest in the neural bases of spatial navigation stems from the discovery of neuronal populations with strong, specific spatial signals. The regular firing field arrays of medial entorhinal grid cells suggest that they may provide place

Bruno Poucet, Francesca Sargolini, Eun Y. Song, Balázs Hangya, Steven Fox, Robert U. Muller

Sep 6, 1984 - Early biosynthetic studies implicated the intestine as one of the major sites of synthesis of C1q in guinea-pigs, humans and pigs (Colten et al. 1966; Colten et al. 1968; Day et al. 1970). Columnar epithelial cells were considered to be the

Mar 12, 1990 - For granulocytic-macrophage progenitor populations and their progeny, five glycoproteins have been identified: GM-CSF, G-CSF, multi-CSF, M-CSF and IL-6 that can regulate their proliferative activity, maturation and functional activities. The same

Feb 6, 2014 - Controlling and improving neuronal cell migration and neurite outgrowth are critical elements of tissue engineering applications and development of artificial neuronal interfaces. To this end, a promising approach exploits nano/microstructured

Ilaria Tonazzini, Monica Pellegrini, Mario Pellegrino, Marco Cecchini

Jun 24, 1980 - Cancers are clones of abnormal cells, arising presumably as the result of mutational or epigenetic alterations of gene expression. The kinetics of appearance of spontaneous cancers in populations of multiplying cells (i. e. the relation between age

Jun 6, 2013 - Intravital microscopy has become increasingly popular over the past few decades because it provides high-resolution and real-time information about complex biological processes. Technological advances that allow deeper penetration in live tissues,

Fränze Progatzky, Margaret J. Dallman, Cristina Lo Celso

Mar 5, 2018 - Telomeres are repeating DNA found at the ends of chromosomes that, in the absence of restorative processes, shorten with cell replications and are implicated as a cause of senescence. It appears that sperm telomere length (TL) increases with age in

Dan T. A. Eisenberg, Christopher W. Kuzawa